31984875

素因数分解:

$3^9\times 5^3\times {\mathrm{13}}^1$

素因数の和:55

約数の個数: 80

約数和(自身を含む): 64480416

約数和(自身を除く): 32495541

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 125, 135, 195, 225, 243, 325, 351, 375, 405, 585, 675, 729, 975, 1053, 1125, 1215, 1625, 1755, 2025, 2187, 2925, 3159, 3375, 3645, 4875, 5265, 6075, 6561, 8775, 9477, 10125, 10935, 14625, 15795, 18225, 19683, 26325, 28431, 30375, 32805, 43875, 47385, 54675, 78975, 85293, 91125, 98415, 131625, 142155, 164025, 236925, 255879, 273375, 394875, 426465, 492075, 710775, 820125, 1184625, 1279395, 2132325, 2460375, 3553875, 6396975, 10661625, 31984875]

約数ペア:

[(1, 31984875), (3, 10661625), (5, 6396975), (9, 3553875), (13, 2460375), (15, 2132325), (25, 1279395), (27, 1184625), (39, 820125), (45, 710775), (65, 492075), (75, 426465), (81, 394875), (117, 273375), (125, 255879), (135, 236925), (195, 164025), (225, 142155), (243, 131625), (325, 98415), (351, 91125), (375, 85293), (405, 78975), (585, 54675), (675, 47385), (729, 43875), (975, 32805), (1053, 30375), (1125, 28431), (1215, 26325), (1625, 19683), (1755, 18225), (2025, 15795), (2187, 14625), (2925, 10935), (3159, 10125), (3375, 9477), (3645, 8775), (4875, 6561), (5265, 6075)]