28023750

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:128

約数の個数: 120

約数和(自身を含む): 78949728

約数和(自身を除く): 50925978

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 47, 50, 53, 75, 90, 94, 106, 125, 141, 150, 159, 225, 235, 250, 265, 282, 318, 375, 423, 450, 470, 477, 530, 625, 705, 750, 795, 846, 954, 1125, 1175, 1250, 1325, 1410, 1590, 1875, 2115, 2250, 2350, 2385, 2491, 2650, 3525, 3750, 3975, 4230, 4770, 4982, 5625, 5875, 6625, 7050, 7473, 7950, 10575, 11250, 11750, 11925, 12455, 13250, 14946, 17625, 19875, 21150, 22419, 23850, 24910, 29375, 33125, 35250, 37365, 39750, 44838, 52875, 58750, 59625, 62275, 66250, 74730, 88125, 99375, 105750, 112095, 119250, 124550, 176250, 186825, 198750, 224190, 264375, 298125, 311375, 373650, 528750, 560475, 596250, 622750, 934125, 1120950, 1556875, 1868250, 2802375, 3113750, 4670625, 5604750, 9341250, 14011875, 28023750]

約数ペア:

[(1, 28023750), (2, 14011875), (3, 9341250), (5, 5604750), (6, 4670625), (9, 3113750), (10, 2802375), (15, 1868250), (18, 1556875), (25, 1120950), (30, 934125), (45, 622750), (47, 596250), (50, 560475), (53, 528750), (75, 373650), (90, 311375), (94, 298125), (106, 264375), (125, 224190), (141, 198750), (150, 186825), (159, 176250), (225, 124550), (235, 119250), (250, 112095), (265, 105750), (282, 99375), (318, 88125), (375, 74730), (423, 66250), (450, 62275), (470, 59625), (477, 58750), (530, 52875), (625, 44838), (705, 39750), (750, 37365), (795, 35250), (846, 33125), (954, 29375), (1125, 24910), (1175, 23850), (1250, 22419), (1325, 21150), (1410, 19875), (1590, 17625), (1875, 14946), (2115, 13250), (2250, 12455), (2350, 11925), (2385, 11750), (2491, 11250), (2650, 10575), (3525, 7950), (3750, 7473), (3975, 7050), (4230, 6625), (4770, 5875), (4982, 5625)]