251268330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:772

約数の個数: 128

約数和(自身を含む): 688766976

約数和(自身を除く): 437498646

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 31, 34, 46, 51, 62, 69, 85, 93, 102, 115, 138, 155, 170, 186, 230, 255, 310, 345, 391, 465, 510, 527, 690, 691, 713, 782, 930, 1054, 1173, 1382, 1426, 1581, 1955, 2073, 2139, 2346, 2635, 3162, 3455, 3565, 3910, 4146, 4278, 5270, 5865, 6910, 7130, 7905, 10365, 10695, 11730, 11747, 12121, 15810, 15893, 20730, 21390, 21421, 23494, 24242, 31786, 35241, 36363, 42842, 47679, 58735, 60605, 64263, 70482, 72726, 79465, 95358, 107105, 117470, 121210, 128526, 158930, 176205, 181815, 214210, 238395, 270181, 321315, 352410, 363630, 364157, 476790, 492683, 540362, 642630, 728314, 810543, 985366, 1092471, 1350905, 1478049, 1621086, 1820785, 2184942, 2463415, 2701810, 2956098, 3641570, 4052715, 4926830, 5462355, 7390245, 8105430, 8375611, 10924710, 14780490, 16751222, 25126833, 41878055, 50253666, 83756110, 125634165, 251268330]

約数ペア:

[(1, 251268330), (2, 125634165), (3, 83756110), (5, 50253666), (6, 41878055), (10, 25126833), (15, 16751222), (17, 14780490), (23, 10924710), (30, 8375611), (31, 8105430), (34, 7390245), (46, 5462355), (51, 4926830), (62, 4052715), (69, 3641570), (85, 2956098), (93, 2701810), (102, 2463415), (115, 2184942), (138, 1820785), (155, 1621086), (170, 1478049), (186, 1350905), (230, 1092471), (255, 985366), (310, 810543), (345, 728314), (391, 642630), (465, 540362), (510, 492683), (527, 476790), (690, 364157), (691, 363630), (713, 352410), (782, 321315), (930, 270181), (1054, 238395), (1173, 214210), (1382, 181815), (1426, 176205), (1581, 158930), (1955, 128526), (2073, 121210), (2139, 117470), (2346, 107105), (2635, 95358), (3162, 79465), (3455, 72726), (3565, 70482), (3910, 64263), (4146, 60605), (4278, 58735), (5270, 47679), (5865, 42842), (6910, 36363), (7130, 35241), (7905, 31786), (10365, 24242), (10695, 23494), (11730, 21421), (11747, 21390), (12121, 20730), (15810, 15893)]