18957900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4861}}^1$

素因数の和:4891

約数の個数: 72

約数和(自身を含む): 59083024

約数和(自身を除く): 40125124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 4861, 9722, 14583, 19444, 24305, 29166, 48610, 58332, 63193, 72915, 97220, 121525, 126386, 145830, 189579, 243050, 252772, 291660, 315965, 364575, 379158, 486100, 631930, 729150, 758316, 947895, 1263860, 1458300, 1579825, 1895790, 3159650, 3791580, 4739475, 6319300, 9478950, 18957900]

約数ペア:

[(1, 18957900), (2, 9478950), (3, 6319300), (4, 4739475), (5, 3791580), (6, 3159650), (10, 1895790), (12, 1579825), (13, 1458300), (15, 1263860), (20, 947895), (25, 758316), (26, 729150), (30, 631930), (39, 486100), (50, 379158), (52, 364575), (60, 315965), (65, 291660), (75, 252772), (78, 243050), (100, 189579), (130, 145830), (150, 126386), (156, 121525), (195, 97220), (260, 72915), (300, 63193), (325, 58332), (390, 48610), (650, 29166), (780, 24305), (975, 19444), (1300, 14583), (1950, 9722), (3900, 4861)]