28958280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1023

約数の個数: 128

約数和(自身を含む): 98582400

約数和(自身を除く): 69624120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 741, 760, 780, 977, 988, 1140, 1235, 1482, 1560, 1954, 1976, 2280, 2470, 2931, 2964, 3705, 3908, 4885, 4940, 5862, 5928, 7410, 7816, 9770, 9880, 11724, 12701, 14655, 14820, 18563, 19540, 23448, 25402, 29310, 29640, 37126, 38103, 39080, 50804, 55689, 58620, 63505, 74252, 76206, 92815, 101608, 111378, 117240, 127010, 148504, 152412, 185630, 190515, 222756, 241319, 254020, 278445, 304824, 371260, 381030, 445512, 482638, 508040, 556890, 723957, 742520, 762060, 965276, 1113780, 1206595, 1447914, 1524120, 1930552, 2227560, 2413190, 2895828, 3619785, 4826380, 5791656, 7239570, 9652760, 14479140, 28958280]

約数ペア:

[(1, 28958280), (2, 14479140), (3, 9652760), (4, 7239570), (5, 5791656), (6, 4826380), (8, 3619785), (10, 2895828), (12, 2413190), (13, 2227560), (15, 1930552), (19, 1524120), (20, 1447914), (24, 1206595), (26, 1113780), (30, 965276), (38, 762060), (39, 742520), (40, 723957), (52, 556890), (57, 508040), (60, 482638), (65, 445512), (76, 381030), (78, 371260), (95, 304824), (104, 278445), (114, 254020), (120, 241319), (130, 222756), (152, 190515), (156, 185630), (190, 152412), (195, 148504), (228, 127010), (247, 117240), (260, 111378), (285, 101608), (312, 92815), (380, 76206), (390, 74252), (456, 63505), (494, 58620), (520, 55689), (570, 50804), (741, 39080), (760, 38103), (780, 37126), (977, 29640), (988, 29310), (1140, 25402), (1235, 23448), (1482, 19540), (1560, 18563), (1954, 14820), (1976, 14655), (2280, 12701), (2470, 11724), (2931, 9880), (2964, 9770), (3705, 7816), (3908, 7410), (4885, 5928), (4940, 5862)]