80312940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:472

約数の個数: 144

約数和(自身を含む): 258935040

約数和(自身を除く): 178622100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 37, 45, 60, 62, 74, 90, 93, 111, 124, 148, 155, 180, 185, 186, 222, 279, 310, 333, 370, 372, 389, 444, 465, 555, 558, 620, 666, 740, 778, 930, 1110, 1116, 1147, 1167, 1332, 1395, 1556, 1665, 1860, 1945, 2220, 2294, 2334, 2790, 3330, 3441, 3501, 3890, 4588, 4668, 5580, 5735, 5835, 6660, 6882, 7002, 7780, 10323, 11470, 11670, 12059, 13764, 14004, 14393, 17205, 17505, 20646, 22940, 23340, 24118, 28786, 34410, 35010, 36177, 41292, 43179, 48236, 51615, 57572, 60295, 68820, 70020, 71965, 72354, 86358, 103230, 108531, 120590, 129537, 143930, 144708, 172716, 180885, 206460, 215895, 217062, 241180, 259074, 287860, 361770, 431790, 434124, 446183, 518148, 542655, 647685, 723540, 863580, 892366, 1085310, 1295370, 1338549, 1784732, 2170620, 2230915, 2590740, 2677098, 4015647, 4461830, 5354196, 6692745, 8031294, 8923660, 13385490, 16062588, 20078235, 26770980, 40156470, 80312940]

約数ペア:

[(1, 80312940), (2, 40156470), (3, 26770980), (4, 20078235), (5, 16062588), (6, 13385490), (9, 8923660), (10, 8031294), (12, 6692745), (15, 5354196), (18, 4461830), (20, 4015647), (30, 2677098), (31, 2590740), (36, 2230915), (37, 2170620), (45, 1784732), (60, 1338549), (62, 1295370), (74, 1085310), (90, 892366), (93, 863580), (111, 723540), (124, 647685), (148, 542655), (155, 518148), (180, 446183), (185, 434124), (186, 431790), (222, 361770), (279, 287860), (310, 259074), (333, 241180), (370, 217062), (372, 215895), (389, 206460), (444, 180885), (465, 172716), (555, 144708), (558, 143930), (620, 129537), (666, 120590), (740, 108531), (778, 103230), (930, 86358), (1110, 72354), (1116, 71965), (1147, 70020), (1167, 68820), (1332, 60295), (1395, 57572), (1556, 51615), (1665, 48236), (1860, 43179), (1945, 41292), (2220, 36177), (2294, 35010), (2334, 34410), (2790, 28786), (3330, 24118), (3441, 23340), (3501, 22940), (3890, 20646), (4588, 17505), (4668, 17205), (5580, 14393), (5735, 14004), (5835, 13764), (6660, 12059), (6882, 11670), (7002, 11470), (7780, 10323)]