20783100

素因数分解:

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

素因数の和:176

約数の個数: 108

約数和(自身を含む): 65657256

約数和(自身を除く): 44874156

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, 780, 876, 949, 975, 1095, 1300, 1460, 1825, 1898, 1950, 2190, 2847, 3650, 3796, 3900, 4380, 4745, 5329, 5475, 5694, 7300, 9490, 10658, 10950, 11388, 14235, 15987, 18980, 21316, 21900, 23725, 26645, 28470, 31974, 47450, 53290, 56940, 63948, 69277, 71175, 79935, 94900, 106580, 133225, 138554, 142350, 159870, 207831, 266450, 277108, 284700, 319740, 346385, 399675, 415662, 532900, 692770, 799350, 831324, 1039155, 1385540, 1598700, 1731925, 2078310, 3463850, 4156620, 5195775, 6927700, 10391550, 20783100]

約数ペア:

[(1, 20783100), (2, 10391550), (3, 6927700), (4, 5195775), (5, 4156620), (6, 3463850), (10, 2078310), (12, 1731925), (13, 1598700), (15, 1385540), (20, 1039155), (25, 831324), (26, 799350), (30, 692770), (39, 532900), (50, 415662), (52, 399675), (60, 346385), (65, 319740), (73, 284700), (75, 277108), (78, 266450), (100, 207831), (130, 159870), (146, 142350), (150, 138554), (156, 133225), (195, 106580), (219, 94900), (260, 79935), (292, 71175), (300, 69277), (325, 63948), (365, 56940), (390, 53290), (438, 47450), (650, 31974), (730, 28470), (780, 26645), (876, 23725), (949, 21900), (975, 21316), (1095, 18980), (1300, 15987), (1460, 14235), (1825, 11388), (1898, 10950), (1950, 10658), (2190, 9490), (2847, 7300), (3650, 5694), (3796, 5475), (3900, 5329), (4380, 4745)]