20458523920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{1229}}^1$

素因数の和:1457

約数の個数: 160

約数和(自身を含む): 50734252800

約数和(自身を除く): 30275728880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 83, 92, 109, 115, 166, 184, 218, 230, 332, 368, 415, 436, 460, 545, 664, 830, 872, 920, 1090, 1229, 1328, 1660, 1744, 1840, 1909, 2180, 2458, 2507, 3320, 3818, 4360, 4916, 5014, 6145, 6640, 7636, 8720, 9047, 9545, 9832, 10028, 12290, 12535, 15272, 18094, 19090, 19664, 20056, 24580, 25070, 28267, 30544, 36188, 38180, 40112, 45235, 49160, 50140, 56534, 72376, 76360, 90470, 98320, 100280, 102007, 113068, 133961, 141335, 144752, 152720, 180940, 200560, 204014, 208081, 226136, 267922, 282670, 361880, 408028, 416162, 452272, 510035, 535844, 565340, 669805, 723760, 816056, 832324, 1020070, 1040405, 1071688, 1130680, 1339610, 1632112, 1664648, 2040140, 2080810, 2143376, 2261360, 2346161, 2679220, 3081103, 3329296, 4080280, 4161620, 4692322, 5358440, 6162206, 8160560, 8323240, 9384644, 10716880, 11118763, 11730805, 12324412, 15405515, 16646480, 18769288, 22237526, 23461610, 24648824, 30811030, 37538576, 44475052, 46923220, 49297648, 55593815, 61622060, 88950104, 93846440, 111187630, 123244120, 177900208, 187692880, 222375260, 246488240, 255731549, 444750520, 511463098, 889501040, 1022926196, 1278657745, 2045852392, 2557315490, 4091704784, 5114630980, 10229261960, 20458523920]

約数ペア:

[(1, 20458523920), (2, 10229261960), (4, 5114630980), (5, 4091704784), (8, 2557315490), (10, 2045852392), (16, 1278657745), (20, 1022926196), (23, 889501040), (40, 511463098), (46, 444750520), (80, 255731549), (83, 246488240), (92, 222375260), (109, 187692880), (115, 177900208), (166, 123244120), (184, 111187630), (218, 93846440), (230, 88950104), (332, 61622060), (368, 55593815), (415, 49297648), (436, 46923220), (460, 44475052), (545, 37538576), (664, 30811030), (830, 24648824), (872, 23461610), (920, 22237526), (1090, 18769288), (1229, 16646480), (1328, 15405515), (1660, 12324412), (1744, 11730805), (1840, 11118763), (1909, 10716880), (2180, 9384644), (2458, 8323240), (2507, 8160560), (3320, 6162206), (3818, 5358440), (4360, 4692322), (4916, 4161620), (5014, 4080280), (6145, 3329296), (6640, 3081103), (7636, 2679220), (8720, 2346161), (9047, 2261360), (9545, 2143376), (9832, 2080810), (10028, 2040140), (12290, 1664648), (12535, 1632112), (15272, 1339610), (18094, 1130680), (19090, 1071688), (19664, 1040405), (20056, 1020070), (24580, 832324), (25070, 816056), (28267, 723760), (30544, 669805), (36188, 565340), (38180, 535844), (40112, 510035), (45235, 452272), (49160, 416162), (50140, 408028), (56534, 361880), (72376, 282670), (76360, 267922), (90470, 226136), (98320, 208081), (100280, 204014), (102007, 200560), (113068, 180940), (133961, 152720), (141335, 144752)]