128047140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54721}}^1$

素因数の和:54749

約数の個数: 72

約数和(自身を含む): 418294968

約数和(自身を除く): 290247828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 54721, 109442, 164163, 218884, 273605, 328326, 492489, 547210, 656652, 711373, 820815, 984978, 1094420, 1422746, 1641630, 1969956, 2134119, 2462445, 2845492, 3283260, 3556865, 4268238, 4924890, 6402357, 7113730, 8536476, 9849780, 10670595, 12804714, 14227460, 21341190, 25609428, 32011785, 42682380, 64023570, 128047140]

約数ペア:

[(1, 128047140), (2, 64023570), (3, 42682380), (4, 32011785), (5, 25609428), (6, 21341190), (9, 14227460), (10, 12804714), (12, 10670595), (13, 9849780), (15, 8536476), (18, 7113730), (20, 6402357), (26, 4924890), (30, 4268238), (36, 3556865), (39, 3283260), (45, 2845492), (52, 2462445), (60, 2134119), (65, 1969956), (78, 1641630), (90, 1422746), (117, 1094420), (130, 984978), (156, 820815), (180, 711373), (195, 656652), (234, 547210), (260, 492489), (390, 328326), (468, 273605), (585, 218884), (780, 164163), (1170, 109442), (2340, 54721)]