664754740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 1673457408

約数和(自身を除く): 1008702668

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 23, 26, 34, 46, 52, 65, 68, 85, 92, 115, 130, 169, 170, 221, 230, 260, 299, 338, 340, 391, 442, 460, 503, 598, 676, 782, 845, 884, 1006, 1105, 1196, 1495, 1564, 1690, 1955, 2012, 2210, 2515, 2873, 2990, 3380, 3887, 3910, 4420, 5030, 5083, 5746, 5980, 6539, 7774, 7820, 8551, 10060, 10166, 11492, 11569, 13078, 14365, 15548, 17102, 19435, 20332, 23138, 25415, 26156, 28730, 32695, 34204, 38870, 42755, 46276, 50830, 57460, 57845, 65390, 66079, 77740, 85007, 85510, 101660, 111163, 115690, 130780, 132158, 150397, 170014, 171020, 196673, 222326, 231380, 264316, 300794, 330395, 340028, 393346, 425035, 444652, 555815, 601588, 660790, 751985, 786692, 850070, 983365, 1111630, 1321580, 1445119, 1503970, 1700140, 1955161, 1966730, 2223260, 2556749, 2890238, 3007940, 3910322, 3933460, 5113498, 5780476, 7225595, 7820644, 9775805, 10226996, 12783745, 14451190, 19551610, 25567490, 28902380, 33237737, 39103220, 51134980, 66475474, 132950948, 166188685, 332377370, 664754740]

約数ペア:

[(1, 664754740), (2, 332377370), (4, 166188685), (5, 132950948), (10, 66475474), (13, 51134980), (17, 39103220), (20, 33237737), (23, 28902380), (26, 25567490), (34, 19551610), (46, 14451190), (52, 12783745), (65, 10226996), (68, 9775805), (85, 7820644), (92, 7225595), (115, 5780476), (130, 5113498), (169, 3933460), (170, 3910322), (221, 3007940), (230, 2890238), (260, 2556749), (299, 2223260), (338, 1966730), (340, 1955161), (391, 1700140), (442, 1503970), (460, 1445119), (503, 1321580), (598, 1111630), (676, 983365), (782, 850070), (845, 786692), (884, 751985), (1006, 660790), (1105, 601588), (1196, 555815), (1495, 444652), (1564, 425035), (1690, 393346), (1955, 340028), (2012, 330395), (2210, 300794), (2515, 264316), (2873, 231380), (2990, 222326), (3380, 196673), (3887, 171020), (3910, 170014), (4420, 150397), (5030, 132158), (5083, 130780), (5746, 115690), (5980, 111163), (6539, 101660), (7774, 85510), (7820, 85007), (8551, 77740), (10060, 66079), (10166, 65390), (11492, 57845), (11569, 57460), (13078, 50830), (14365, 46276), (15548, 42755), (17102, 38870), (19435, 34204), (20332, 32695), (23138, 28730), (25415, 26156)]