18505500

素因数分解:

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

素因数の和:121

約数の個数: 144

約数和(自身を含む): 59151456

約数和(自身を除く): 40645956

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, 125, 130, 146, 150, 156, 169, 195, 219, 250, 260, 292, 300, 325, 338, 365, 375, 390, 438, 500, 507, 650, 676, 730, 750, 780, 845, 876, 949, 975, 1014, 1095, 1300, 1460, 1500, 1625, 1690, 1825, 1898, 1950, 2028, 2190, 2535, 2847, 3250, 3380, 3650, 3796, 3900, 4225, 4380, 4745, 4875, 5070, 5475, 5694, 6500, 7300, 8450, 9125, 9490, 9750, 10140, 10950, 11388, 12337, 12675, 14235, 16900, 18250, 18980, 19500, 21125, 21900, 23725, 24674, 25350, 27375, 28470, 36500, 37011, 42250, 47450, 49348, 50700, 54750, 56940, 61685, 63375, 71175, 74022, 84500, 94900, 109500, 118625, 123370, 126750, 142350, 148044, 185055, 237250, 246740, 253500, 284700, 308425, 355875, 370110, 474500, 616850, 711750, 740220, 925275, 1233700, 1423500, 1542125, 1850550, 3084250, 3701100, 4626375, 6168500, 9252750, 18505500]

約数ペア:

[(1, 18505500), (2, 9252750), (3, 6168500), (4, 4626375), (5, 3701100), (6, 3084250), (10, 1850550), (12, 1542125), (13, 1423500), (15, 1233700), (20, 925275), (25, 740220), (26, 711750), (30, 616850), (39, 474500), (50, 370110), (52, 355875), (60, 308425), (65, 284700), (73, 253500), (75, 246740), (78, 237250), (100, 185055), (125, 148044), (130, 142350), (146, 126750), (150, 123370), (156, 118625), (169, 109500), (195, 94900), (219, 84500), (250, 74022), (260, 71175), (292, 63375), (300, 61685), (325, 56940), (338, 54750), (365, 50700), (375, 49348), (390, 47450), (438, 42250), (500, 37011), (507, 36500), (650, 28470), (676, 27375), (730, 25350), (750, 24674), (780, 23725), (845, 21900), (876, 21125), (949, 19500), (975, 18980), (1014, 18250), (1095, 16900), (1300, 14235), (1460, 12675), (1500, 12337), (1625, 11388), (1690, 10950), (1825, 10140), (1898, 9750), (1950, 9490), (2028, 9125), (2190, 8450), (2535, 7300), (2847, 6500), (3250, 5694), (3380, 5475), (3650, 5070), (3796, 4875), (3900, 4745), (4225, 4380)]