81197640

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1319}}^1$

素因数の和:1361

約数の個数: 160

約数和(自身を含む): 287496000

約数和(自身を除く): 206298360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 81, 90, 95, 108, 114, 120, 135, 152, 162, 171, 180, 190, 216, 228, 270, 285, 324, 342, 360, 380, 405, 456, 513, 540, 570, 648, 684, 760, 810, 855, 1026, 1080, 1140, 1319, 1368, 1539, 1620, 1710, 2052, 2280, 2565, 2638, 3078, 3240, 3420, 3957, 4104, 5130, 5276, 6156, 6595, 6840, 7695, 7914, 10260, 10552, 11871, 12312, 13190, 15390, 15828, 19785, 20520, 23742, 25061, 26380, 30780, 31656, 35613, 39570, 47484, 50122, 52760, 59355, 61560, 71226, 75183, 79140, 94968, 100244, 106839, 118710, 125305, 142452, 150366, 158280, 178065, 200488, 213678, 225549, 237420, 250610, 284904, 300732, 356130, 375915, 427356, 451098, 474840, 501220, 534195, 601464, 676647, 712260, 751830, 854712, 902196, 1002440, 1068390, 1127745, 1353294, 1424520, 1503660, 1804392, 2029941, 2136780, 2255490, 2706588, 3007320, 3383235, 4059882, 4273560, 4510980, 5413176, 6766470, 8119764, 9021960, 10149705, 13532940, 16239528, 20299410, 27065880, 40598820, 81197640]

約数ペア:

[(1, 81197640), (2, 40598820), (3, 27065880), (4, 20299410), (5, 16239528), (6, 13532940), (8, 10149705), (9, 9021960), (10, 8119764), (12, 6766470), (15, 5413176), (18, 4510980), (19, 4273560), (20, 4059882), (24, 3383235), (27, 3007320), (30, 2706588), (36, 2255490), (38, 2136780), (40, 2029941), (45, 1804392), (54, 1503660), (57, 1424520), (60, 1353294), (72, 1127745), (76, 1068390), (81, 1002440), (90, 902196), (95, 854712), (108, 751830), (114, 712260), (120, 676647), (135, 601464), (152, 534195), (162, 501220), (171, 474840), (180, 451098), (190, 427356), (216, 375915), (228, 356130), (270, 300732), (285, 284904), (324, 250610), (342, 237420), (360, 225549), (380, 213678), (405, 200488), (456, 178065), (513, 158280), (540, 150366), (570, 142452), (648, 125305), (684, 118710), (760, 106839), (810, 100244), (855, 94968), (1026, 79140), (1080, 75183), (1140, 71226), (1319, 61560), (1368, 59355), (1539, 52760), (1620, 50122), (1710, 47484), (2052, 39570), (2280, 35613), (2565, 31656), (2638, 30780), (3078, 26380), (3240, 25061), (3420, 23742), (3957, 20520), (4104, 19785), (5130, 15828), (5276, 15390), (6156, 13190), (6595, 12312), (6840, 11871), (7695, 10552), (7914, 10260)]