628580025

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{397}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 1170234624

約数和(自身を除く): 541654599

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 227, 279, 397, 465, 681, 775, 1135, 1191, 1395, 1985, 2043, 2325, 3405, 3573, 5675, 5955, 6975, 7037, 9925, 10215, 12307, 17025, 17865, 21111, 29775, 35185, 36921, 51075, 61535, 63333, 89325, 90119, 105555, 110763, 175925, 184605, 270357, 307675, 316665, 450595, 527775, 553815, 811071, 923025, 1351785, 1583325, 2252975, 2769075, 2793689, 4055355, 6758925, 8381067, 13968445, 20276775, 25143201, 41905335, 69842225, 125716005, 209526675, 628580025]

約数ペア:

[(1, 628580025), (3, 209526675), (5, 125716005), (9, 69842225), (15, 41905335), (25, 25143201), (31, 20276775), (45, 13968445), (75, 8381067), (93, 6758925), (155, 4055355), (225, 2793689), (227, 2769075), (279, 2252975), (397, 1583325), (465, 1351785), (681, 923025), (775, 811071), (1135, 553815), (1191, 527775), (1395, 450595), (1985, 316665), (2043, 307675), (2325, 270357), (3405, 184605), (3573, 175925), (5675, 110763), (5955, 105555), (6975, 90119), (7037, 89325), (9925, 63333), (10215, 61535), (12307, 51075), (17025, 36921), (17865, 35185), (21111, 29775)]