20116980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8597}}^1$

素因数の和:8625

約数の個数: 72

約数和(自身を含む): 65723112

約数和(自身を除く): 45606132

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, 8597, 17194, 25791, 34388, 42985, 51582, 77373, 85970, 103164, 111761, 128955, 154746, 171940, 223522, 257910, 309492, 335283, 386865, 447044, 515820, 558805, 670566, 773730, 1005849, 1117610, 1341132, 1547460, 1676415, 2011698, 2235220, 3352830, 4023396, 5029245, 6705660, 10058490, 20116980]

約数ペア:

[(1, 20116980), (2, 10058490), (3, 6705660), (4, 5029245), (5, 4023396), (6, 3352830), (9, 2235220), (10, 2011698), (12, 1676415), (13, 1547460), (15, 1341132), (18, 1117610), (20, 1005849), (26, 773730), (30, 670566), (36, 558805), (39, 515820), (45, 447044), (52, 386865), (60, 335283), (65, 309492), (78, 257910), (90, 223522), (117, 171940), (130, 154746), (156, 128955), (180, 111761), (195, 103164), (234, 85970), (260, 77373), (390, 51582), (468, 42985), (585, 34388), (780, 25791), (1170, 17194), (2340, 8597)]