67898990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 134369280

約数和(自身を除く): 66470290

約数列:

[1, 2, 5, 10, 23, 31, 46, 62, 89, 107, 115, 155, 178, 214, 230, 310, 445, 535, 713, 890, 1070, 1426, 2047, 2461, 2759, 3317, 3565, 4094, 4922, 5518, 6634, 7130, 9523, 10235, 12305, 13795, 16585, 19046, 20470, 24610, 27590, 33170, 47615, 63457, 76291, 95230, 126914, 152582, 219029, 295213, 317285, 381455, 438058, 590426, 634570, 762910, 1095145, 1476065, 2190290, 2952130, 6789899, 13579798, 33949495, 67898990]

約数ペア:

[(1, 67898990), (2, 33949495), (5, 13579798), (10, 6789899), (23, 2952130), (31, 2190290), (46, 1476065), (62, 1095145), (89, 762910), (107, 634570), (115, 590426), (155, 438058), (178, 381455), (214, 317285), (230, 295213), (310, 219029), (445, 152582), (535, 126914), (713, 95230), (890, 76291), (1070, 63457), (1426, 47615), (2047, 33170), (2461, 27590), (2759, 24610), (3317, 20470), (3565, 19046), (4094, 16585), (4922, 13795), (5518, 12305), (6634, 10235), (7130, 9523)]