20184952004

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1543}}^1\times {\mathrm{2153}}^1$

素因数の和:3745

約数の個数: 72

約数和(自身を含む): 42463507968

約数和(自身を除く): 22278555964

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 1543, 2153, 3038, 3086, 4306, 6076, 6172, 8612, 10801, 15071, 21602, 30142, 43204, 47833, 60284, 66743, 75607, 95666, 105497, 133486, 151214, 191332, 210994, 266972, 302428, 334831, 421988, 467201, 669662, 934402, 1339324, 1868804, 2343817, 3270407, 3322079, 4687634, 6540814, 6644158, 9375268, 13081628, 13288316, 23254553, 46509106, 93018212, 102984449, 162781871, 205968898, 325563742, 411937796, 651127484, 720891143, 1441782286, 2883564572, 5046238001, 10092476002, 20184952004]

約数ペア:

[(1, 20184952004), (2, 10092476002), (4, 5046238001), (7, 2883564572), (14, 1441782286), (28, 720891143), (31, 651127484), (49, 411937796), (62, 325563742), (98, 205968898), (124, 162781871), (196, 102984449), (217, 93018212), (434, 46509106), (868, 23254553), (1519, 13288316), (1543, 13081628), (2153, 9375268), (3038, 6644158), (3086, 6540814), (4306, 4687634), (6076, 3322079), (6172, 3270407), (8612, 2343817), (10801, 1868804), (15071, 1339324), (21602, 934402), (30142, 669662), (43204, 467201), (47833, 421988), (60284, 334831), (66743, 302428), (75607, 266972), (95666, 210994), (105497, 191332), (133486, 151214)]