291143790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{617}}^1$

素因数の和:751

約数の個数: 144

約数和(自身を含む): 890231472

約数和(自身を除く): 599087682

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 107, 126, 147, 210, 214, 245, 294, 315, 321, 441, 490, 535, 617, 630, 642, 735, 749, 882, 963, 1070, 1234, 1470, 1498, 1605, 1851, 1926, 2205, 2247, 3085, 3210, 3702, 3745, 4319, 4410, 4494, 4815, 5243, 5553, 6170, 6741, 7490, 8638, 9255, 9630, 10486, 11106, 11235, 12957, 13482, 15729, 18510, 21595, 22470, 25914, 26215, 27765, 30233, 31458, 33705, 38871, 43190, 47187, 52430, 55530, 60466, 64785, 66019, 67410, 77742, 78645, 90699, 94374, 129570, 132038, 151165, 157290, 181398, 194355, 198057, 235935, 272097, 302330, 330095, 388710, 396114, 453495, 462133, 471870, 544194, 594171, 660190, 906990, 924266, 990285, 1188342, 1360485, 1386399, 1980570, 2310665, 2720970, 2772798, 2970855, 3234931, 4159197, 4621330, 5941710, 6469862, 6931995, 8318394, 9704793, 13863990, 16174655, 19409586, 20795985, 29114379, 32349310, 41591970, 48523965, 58228758, 97047930, 145571895, 291143790]

約数ペア:

[(1, 291143790), (2, 145571895), (3, 97047930), (5, 58228758), (6, 48523965), (7, 41591970), (9, 32349310), (10, 29114379), (14, 20795985), (15, 19409586), (18, 16174655), (21, 13863990), (30, 9704793), (35, 8318394), (42, 6931995), (45, 6469862), (49, 5941710), (63, 4621330), (70, 4159197), (90, 3234931), (98, 2970855), (105, 2772798), (107, 2720970), (126, 2310665), (147, 1980570), (210, 1386399), (214, 1360485), (245, 1188342), (294, 990285), (315, 924266), (321, 906990), (441, 660190), (490, 594171), (535, 544194), (617, 471870), (630, 462133), (642, 453495), (735, 396114), (749, 388710), (882, 330095), (963, 302330), (1070, 272097), (1234, 235935), (1470, 198057), (1498, 194355), (1605, 181398), (1851, 157290), (1926, 151165), (2205, 132038), (2247, 129570), (3085, 94374), (3210, 90699), (3702, 78645), (3745, 77742), (4319, 67410), (4410, 66019), (4494, 64785), (4815, 60466), (5243, 55530), (5553, 52430), (6170, 47187), (6741, 43190), (7490, 38871), (8638, 33705), (9255, 31458), (9630, 30233), (10486, 27765), (11106, 26215), (11235, 25914), (12957, 22470), (13482, 21595), (15729, 18510)]