123789900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31741}}^1$

素因数の和:31771

約数の個数: 72

約数和(自身を含む): 385728784

約数和(自身を除く): 261938884

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, 31741, 63482, 95223, 126964, 158705, 190446, 317410, 380892, 412633, 476115, 634820, 793525, 825266, 952230, 1237899, 1587050, 1650532, 1904460, 2063165, 2380575, 2475798, 3174100, 4126330, 4761150, 4951596, 6189495, 8252660, 9522300, 10315825, 12378990, 20631650, 24757980, 30947475, 41263300, 61894950, 123789900]

約数ペア:

[(1, 123789900), (2, 61894950), (3, 41263300), (4, 30947475), (5, 24757980), (6, 20631650), (10, 12378990), (12, 10315825), (13, 9522300), (15, 8252660), (20, 6189495), (25, 4951596), (26, 4761150), (30, 4126330), (39, 3174100), (50, 2475798), (52, 2380575), (60, 2063165), (65, 1904460), (75, 1650532), (78, 1587050), (100, 1237899), (130, 952230), (150, 825266), (156, 793525), (195, 634820), (260, 476115), (300, 412633), (325, 380892), (390, 317410), (650, 190446), (780, 158705), (975, 126964), (1300, 95223), (1950, 63482), (3900, 31741)]