72810320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 160

約数和(自身を含む): 203129856

約数和(自身を除く): 130319536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 31, 34, 40, 44, 55, 62, 68, 80, 85, 88, 110, 124, 136, 155, 157, 170, 176, 187, 220, 248, 272, 310, 314, 340, 341, 374, 440, 496, 527, 620, 628, 680, 682, 748, 785, 880, 935, 1054, 1240, 1256, 1360, 1364, 1496, 1570, 1705, 1727, 1870, 2108, 2480, 2512, 2635, 2669, 2728, 2992, 3140, 3410, 3454, 3740, 4216, 4867, 5270, 5338, 5456, 5797, 6280, 6820, 6908, 7480, 8432, 8635, 9734, 10540, 10676, 11594, 12560, 13345, 13640, 13816, 14960, 17270, 19468, 21080, 21352, 23188, 24335, 26690, 27280, 27632, 28985, 29359, 34540, 38936, 42160, 42704, 46376, 48670, 53380, 53537, 57970, 58718, 69080, 77872, 82739, 92752, 97340, 106760, 107074, 115940, 117436, 138160, 146795, 165478, 194680, 213520, 214148, 231880, 234872, 267685, 293590, 330956, 389360, 413695, 428296, 463760, 469744, 535370, 587180, 661912, 827390, 856592, 910129, 1070740, 1174360, 1323824, 1654780, 1820258, 2141480, 2348720, 3309560, 3640516, 4282960, 4550645, 6619120, 7281032, 9101290, 14562064, 18202580, 36405160, 72810320]

約数ペア:

[(1, 72810320), (2, 36405160), (4, 18202580), (5, 14562064), (8, 9101290), (10, 7281032), (11, 6619120), (16, 4550645), (17, 4282960), (20, 3640516), (22, 3309560), (31, 2348720), (34, 2141480), (40, 1820258), (44, 1654780), (55, 1323824), (62, 1174360), (68, 1070740), (80, 910129), (85, 856592), (88, 827390), (110, 661912), (124, 587180), (136, 535370), (155, 469744), (157, 463760), (170, 428296), (176, 413695), (187, 389360), (220, 330956), (248, 293590), (272, 267685), (310, 234872), (314, 231880), (340, 214148), (341, 213520), (374, 194680), (440, 165478), (496, 146795), (527, 138160), (620, 117436), (628, 115940), (680, 107074), (682, 106760), (748, 97340), (785, 92752), (880, 82739), (935, 77872), (1054, 69080), (1240, 58718), (1256, 57970), (1360, 53537), (1364, 53380), (1496, 48670), (1570, 46376), (1705, 42704), (1727, 42160), (1870, 38936), (2108, 34540), (2480, 29359), (2512, 28985), (2635, 27632), (2669, 27280), (2728, 26690), (2992, 24335), (3140, 23188), (3410, 21352), (3454, 21080), (3740, 19468), (4216, 17270), (4867, 14960), (5270, 13816), (5338, 13640), (5456, 13345), (5797, 12560), (6280, 11594), (6820, 10676), (6908, 10540), (7480, 9734), (8432, 8635)]