81821981520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{664571}}^1$

素因数の和:664615

約数の個数: 200

約数和(自身を含む): 299137148640

約数和(自身を除く): 217315167120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 270, 285, 304, 324, 342, 360, 380, 405, 432, 456, 513, 540, 570, 648, 684, 720, 760, 810, 855, 912, 1026, 1080, 1140, 1296, 1368, 1520, 1539, 1620, 1710, 2052, 2160, 2280, 2565, 2736, 3078, 3240, 3420, 4104, 4560, 5130, 6156, 6480, 6840, 7695, 8208, 10260, 12312, 13680, 15390, 20520, 24624, 30780, 41040, 61560, 123120, 664571, 1329142, 1993713, 2658284, 3322855, 3987426, 5316568, 5981139, 6645710, 7974852, 9968565, 10633136, 11962278, 12626849, 13291420, 15949704, 17943417, 19937130, 23924556, 25253698, 26582840, 29905695, 31899408, 35886834, 37880547, 39874260, 47849112, 50507396, 53165680, 53830251, 59811390, 63134245, 71773668, 75761094, 79748520, 89717085, 95698224, 101014792, 107660502, 113641641, 119622780, 126268490, 143547336, 151522188, 159497040, 179434170, 189402735, 202029584, 215321004, 227283282, 239245560, 252536980, 269151255, 287094672, 303044376, 340924923, 358868340, 378805470, 430642008, 454566564, 478491120, 505073960, 538302510, 568208205, 606088752, 681849846, 717736680, 757610940, 861284016, 909133128, 1010147920, 1022774769, 1076605020, 1136416410, 1363699692, 1435473360, 1515221880, 1704624615, 1818266256, 2045549538, 2153210040, 2272832820, 2727399384, 3030443760, 3409249230, 4091099076, 4306420080, 4545665640, 5113873845, 5454798768, 6818498460, 8182198152, 9091331280, 10227747690, 13636996920, 16364396304, 20455495380, 27273993840, 40910990760, 81821981520]

約数ペア:

[(1, 81821981520), (2, 40910990760), (3, 27273993840), (4, 20455495380), (5, 16364396304), (6, 13636996920), (8, 10227747690), (9, 9091331280), (10, 8182198152), (12, 6818498460), (15, 5454798768), (16, 5113873845), (18, 4545665640), (19, 4306420080), (20, 4091099076), (24, 3409249230), (27, 3030443760), (30, 2727399384), (36, 2272832820), (38, 2153210040), (40, 2045549538), (45, 1818266256), (48, 1704624615), (54, 1515221880), (57, 1435473360), (60, 1363699692), (72, 1136416410), (76, 1076605020), (80, 1022774769), (81, 1010147920), (90, 909133128), (95, 861284016), (108, 757610940), (114, 717736680), (120, 681849846), (135, 606088752), (144, 568208205), (152, 538302510), (162, 505073960), (171, 478491120), (180, 454566564), (190, 430642008), (216, 378805470), (228, 358868340), (240, 340924923), (270, 303044376), (285, 287094672), (304, 269151255), (324, 252536980), (342, 239245560), (360, 227283282), (380, 215321004), (405, 202029584), (432, 189402735), (456, 179434170), (513, 159497040), (540, 151522188), (570, 143547336), (648, 126268490), (684, 119622780), (720, 113641641), (760, 107660502), (810, 101014792), (855, 95698224), (912, 89717085), (1026, 79748520), (1080, 75761094), (1140, 71773668), (1296, 63134245), (1368, 59811390), (1520, 53830251), (1539, 53165680), (1620, 50507396), (1710, 47849112), (2052, 39874260), (2160, 37880547), (2280, 35886834), (2565, 31899408), (2736, 29905695), (3078, 26582840), (3240, 25253698), (3420, 23924556), (4104, 19937130), (4560, 17943417), (5130, 15949704), (6156, 13291420), (6480, 12626849), (6840, 11962278), (7695, 10633136), (8208, 9968565), (10260, 7974852), (12312, 6645710), (13680, 5981139), (15390, 5316568), (20520, 3987426), (24624, 3322855), (30780, 2658284), (41040, 1993713), (61560, 1329142), (123120, 664571)]