156521720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 392610240

約数和(自身を除く): 236088520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 53, 68, 85, 86, 101, 106, 136, 170, 172, 202, 212, 215, 265, 340, 344, 404, 424, 430, 505, 530, 680, 731, 808, 860, 901, 1010, 1060, 1462, 1717, 1720, 1802, 2020, 2120, 2279, 2924, 3434, 3604, 3655, 4040, 4343, 4505, 4558, 5353, 5848, 6868, 7208, 7310, 8585, 8686, 9010, 9116, 10706, 11395, 13736, 14620, 17170, 17372, 18020, 18232, 21412, 21715, 22790, 26765, 29240, 34340, 34744, 36040, 38743, 42824, 43430, 45580, 53530, 68680, 73831, 77486, 86860, 91001, 91160, 107060, 147662, 154972, 173720, 182002, 193715, 214120, 230179, 295324, 309944, 364004, 369155, 387430, 455005, 460358, 590648, 728008, 738310, 774860, 910010, 920716, 1150895, 1476620, 1549720, 1820020, 1841432, 2301790, 2953240, 3640040, 3913043, 4603580, 7826086, 9207160, 15652172, 19565215, 31304344, 39130430, 78260860, 156521720]

約数ペア:

[(1, 156521720), (2, 78260860), (4, 39130430), (5, 31304344), (8, 19565215), (10, 15652172), (17, 9207160), (20, 7826086), (34, 4603580), (40, 3913043), (43, 3640040), (53, 2953240), (68, 2301790), (85, 1841432), (86, 1820020), (101, 1549720), (106, 1476620), (136, 1150895), (170, 920716), (172, 910010), (202, 774860), (212, 738310), (215, 728008), (265, 590648), (340, 460358), (344, 455005), (404, 387430), (424, 369155), (430, 364004), (505, 309944), (530, 295324), (680, 230179), (731, 214120), (808, 193715), (860, 182002), (901, 173720), (1010, 154972), (1060, 147662), (1462, 107060), (1717, 91160), (1720, 91001), (1802, 86860), (2020, 77486), (2120, 73831), (2279, 68680), (2924, 53530), (3434, 45580), (3604, 43430), (3655, 42824), (4040, 38743), (4343, 36040), (4505, 34744), (4558, 34340), (5353, 29240), (5848, 26765), (6868, 22790), (7208, 21715), (7310, 21412), (8585, 18232), (8686, 18020), (9010, 17372), (9116, 17170), (10706, 14620), (11395, 13736)]