28712740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 74156544

約数和(自身を除く): 45443804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 37, 46, 70, 74, 92, 115, 140, 148, 161, 185, 230, 241, 259, 322, 370, 460, 482, 518, 644, 740, 805, 851, 964, 1036, 1205, 1295, 1610, 1687, 1702, 2410, 2590, 3220, 3374, 3404, 4255, 4820, 5180, 5543, 5957, 6748, 8435, 8510, 8917, 11086, 11914, 16870, 17020, 17834, 22172, 23828, 27715, 29785, 33740, 35668, 38801, 44585, 55430, 59570, 62419, 77602, 89170, 110860, 119140, 124838, 155204, 178340, 194005, 205091, 249676, 312095, 388010, 410182, 624190, 776020, 820364, 1025455, 1248380, 1435637, 2050910, 2871274, 4101820, 5742548, 7178185, 14356370, 28712740]

約数ペア:

[(1, 28712740), (2, 14356370), (4, 7178185), (5, 5742548), (7, 4101820), (10, 2871274), (14, 2050910), (20, 1435637), (23, 1248380), (28, 1025455), (35, 820364), (37, 776020), (46, 624190), (70, 410182), (74, 388010), (92, 312095), (115, 249676), (140, 205091), (148, 194005), (161, 178340), (185, 155204), (230, 124838), (241, 119140), (259, 110860), (322, 89170), (370, 77602), (460, 62419), (482, 59570), (518, 55430), (644, 44585), (740, 38801), (805, 35668), (851, 33740), (964, 29785), (1036, 27715), (1205, 23828), (1295, 22172), (1610, 17834), (1687, 17020), (1702, 16870), (2410, 11914), (2590, 11086), (3220, 8917), (3374, 8510), (3404, 8435), (4255, 6748), (4820, 5957), (5180, 5543)]