221359125

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2671}}^1$

素因数の和:2719

約数の個数: 64

約数和(自身を含む): 420166656

約数和(自身を除く): 198807531

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 125, 195, 221, 255, 325, 375, 425, 663, 975, 1105, 1275, 1625, 2125, 2671, 3315, 4875, 5525, 6375, 8013, 13355, 16575, 27625, 34723, 40065, 45407, 66775, 82875, 104169, 136221, 173615, 200325, 227035, 333875, 520845, 590291, 681105, 868075, 1001625, 1135175, 1770873, 2604225, 2951455, 3405525, 4340375, 5675875, 8854365, 13021125, 14757275, 17027625, 44271825, 73786375, 221359125]

約数ペア:

[(1, 221359125), (3, 73786375), (5, 44271825), (13, 17027625), (15, 14757275), (17, 13021125), (25, 8854365), (39, 5675875), (51, 4340375), (65, 3405525), (75, 2951455), (85, 2604225), (125, 1770873), (195, 1135175), (221, 1001625), (255, 868075), (325, 681105), (375, 590291), (425, 520845), (663, 333875), (975, 227035), (1105, 200325), (1275, 173615), (1625, 136221), (2125, 104169), (2671, 82875), (3315, 66775), (4875, 45407), (5525, 40065), (6375, 34723), (8013, 27625), (13355, 16575)]