215517900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{757}}^1$

素因数の和:860

約数の個数: 144

約数和(自身を含む): 681629984

約数和(自身を除く): 466112084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 73, 75, 78, 100, 130, 146, 150, 156, 195, 219, 260, 292, 300, 325, 365, 390, 438, 650, 730, 757, 780, 876, 949, 975, 1095, 1300, 1460, 1514, 1825, 1898, 1950, 2190, 2271, 2847, 3028, 3650, 3785, 3796, 3900, 4380, 4542, 4745, 5475, 5694, 7300, 7570, 9084, 9490, 9841, 10950, 11355, 11388, 14235, 15140, 18925, 18980, 19682, 21900, 22710, 23725, 28470, 29523, 37850, 39364, 45420, 47450, 49205, 55261, 56775, 56940, 59046, 71175, 75700, 94900, 98410, 110522, 113550, 118092, 142350, 147615, 165783, 196820, 221044, 227100, 246025, 276305, 284700, 295230, 331566, 492050, 552610, 590460, 663132, 718393, 738075, 828915, 984100, 1105220, 1381525, 1436786, 1476150, 1657830, 2155179, 2763050, 2873572, 2952300, 3315660, 3591965, 4144575, 4310358, 5526100, 7183930, 8289150, 8620716, 10775895, 14367860, 16578300, 17959825, 21551790, 35919650, 43103580, 53879475, 71839300, 107758950, 215517900]

約数ペア:

[(1, 215517900), (2, 107758950), (3, 71839300), (4, 53879475), (5, 43103580), (6, 35919650), (10, 21551790), (12, 17959825), (13, 16578300), (15, 14367860), (20, 10775895), (25, 8620716), (26, 8289150), (30, 7183930), (39, 5526100), (50, 4310358), (52, 4144575), (60, 3591965), (65, 3315660), (73, 2952300), (75, 2873572), (78, 2763050), (100, 2155179), (130, 1657830), (146, 1476150), (150, 1436786), (156, 1381525), (195, 1105220), (219, 984100), (260, 828915), (292, 738075), (300, 718393), (325, 663132), (365, 590460), (390, 552610), (438, 492050), (650, 331566), (730, 295230), (757, 284700), (780, 276305), (876, 246025), (949, 227100), (975, 221044), (1095, 196820), (1300, 165783), (1460, 147615), (1514, 142350), (1825, 118092), (1898, 113550), (1950, 110522), (2190, 98410), (2271, 94900), (2847, 75700), (3028, 71175), (3650, 59046), (3785, 56940), (3796, 56775), (3900, 55261), (4380, 49205), (4542, 47450), (4745, 45420), (5475, 39364), (5694, 37850), (7300, 29523), (7570, 28470), (9084, 23725), (9490, 22710), (9841, 21900), (10950, 19682), (11355, 18980), (11388, 18925), (14235, 15140)]