19675480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 48898080

約数和(自身を除く): 29222600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 220, 388, 440, 461, 485, 776, 922, 970, 1067, 1844, 1940, 2134, 2305, 3688, 3880, 4268, 4610, 5071, 5335, 8536, 9220, 10142, 10670, 18440, 20284, 21340, 25355, 40568, 42680, 44717, 50710, 89434, 101420, 178868, 202840, 223585, 357736, 447170, 491887, 894340, 983774, 1788680, 1967548, 2459435, 3935096, 4918870, 9837740, 19675480]

約数ペア:

[(1, 19675480), (2, 9837740), (4, 4918870), (5, 3935096), (8, 2459435), (10, 1967548), (11, 1788680), (20, 983774), (22, 894340), (40, 491887), (44, 447170), (55, 357736), (88, 223585), (97, 202840), (110, 178868), (194, 101420), (220, 89434), (388, 50710), (440, 44717), (461, 42680), (485, 40568), (776, 25355), (922, 21340), (970, 20284), (1067, 18440), (1844, 10670), (1940, 10142), (2134, 9220), (2305, 8536), (3688, 5335), (3880, 5071), (4268, 4610)]