647105680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{2153}}^1$

素因数の和:2213

約数の個数: 120

約数和(自身を含む): 1721967912

約数和(自身を除く): 1074862232

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 289, 340, 442, 520, 578, 680, 884, 1040, 1105, 1156, 1360, 1445, 1768, 2153, 2210, 2312, 2890, 3536, 3757, 4306, 4420, 4624, 5780, 7514, 8612, 8840, 10765, 11560, 15028, 17224, 17680, 18785, 21530, 23120, 27989, 30056, 34448, 36601, 37570, 43060, 55978, 60112, 73202, 75140, 86120, 111956, 139945, 146404, 150280, 172240, 183005, 223912, 279890, 292808, 300560, 366010, 447824, 475813, 559780, 585616, 622217, 732020, 951626, 1119560, 1244434, 1464040, 1903252, 2239120, 2379065, 2488868, 2928080, 3111085, 3806504, 4758130, 4977736, 6222170, 7613008, 8088821, 9516260, 9955472, 12444340, 16177642, 19032520, 24888680, 32355284, 38065040, 40444105, 49777360, 64710568, 80888210, 129421136, 161776420, 323552840, 647105680]

約数ペア:

[(1, 647105680), (2, 323552840), (4, 161776420), (5, 129421136), (8, 80888210), (10, 64710568), (13, 49777360), (16, 40444105), (17, 38065040), (20, 32355284), (26, 24888680), (34, 19032520), (40, 16177642), (52, 12444340), (65, 9955472), (68, 9516260), (80, 8088821), (85, 7613008), (104, 6222170), (130, 4977736), (136, 4758130), (170, 3806504), (208, 3111085), (221, 2928080), (260, 2488868), (272, 2379065), (289, 2239120), (340, 1903252), (442, 1464040), (520, 1244434), (578, 1119560), (680, 951626), (884, 732020), (1040, 622217), (1105, 585616), (1156, 559780), (1360, 475813), (1445, 447824), (1768, 366010), (2153, 300560), (2210, 292808), (2312, 279890), (2890, 223912), (3536, 183005), (3757, 172240), (4306, 150280), (4420, 146404), (4624, 139945), (5780, 111956), (7514, 86120), (8612, 75140), (8840, 73202), (10765, 60112), (11560, 55978), (15028, 43060), (17224, 37570), (17680, 36601), (18785, 34448), (21530, 30056), (23120, 27989)]