291205640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{6823}}^1$

素因数の和:6942

約数の個数: 64

約数和(自身を含む): 722252160

約数和(自身を除く): 431046520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 220, 388, 440, 485, 776, 970, 1067, 1940, 2134, 3880, 4268, 5335, 6823, 8536, 10670, 13646, 21340, 27292, 34115, 42680, 54584, 68230, 75053, 136460, 150106, 272920, 300212, 375265, 600424, 661831, 750530, 1323662, 1501060, 2647324, 3002120, 3309155, 5294648, 6618310, 7280141, 13236620, 14560282, 26473240, 29120564, 36400705, 58241128, 72801410, 145602820, 291205640]

約数ペア:

[(1, 291205640), (2, 145602820), (4, 72801410), (5, 58241128), (8, 36400705), (10, 29120564), (11, 26473240), (20, 14560282), (22, 13236620), (40, 7280141), (44, 6618310), (55, 5294648), (88, 3309155), (97, 3002120), (110, 2647324), (194, 1501060), (220, 1323662), (388, 750530), (440, 661831), (485, 600424), (776, 375265), (970, 300212), (1067, 272920), (1940, 150106), (2134, 136460), (3880, 75053), (4268, 68230), (5335, 54584), (6823, 42680), (8536, 34115), (10670, 27292), (13646, 21340)]