16655920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 42238368

約数和(自身を除く): 25582448

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 37, 40, 68, 74, 80, 85, 136, 148, 170, 185, 272, 296, 331, 340, 370, 592, 629, 662, 680, 740, 1258, 1324, 1360, 1480, 1655, 2516, 2648, 2960, 3145, 3310, 5032, 5296, 5627, 6290, 6620, 10064, 11254, 12247, 12580, 13240, 22508, 24494, 25160, 26480, 28135, 45016, 48988, 50320, 56270, 61235, 90032, 97976, 112540, 122470, 195952, 208199, 225080, 244940, 416398, 450160, 489880, 832796, 979760, 1040995, 1665592, 2081990, 3331184, 4163980, 8327960, 16655920]

約数ペア:

[(1, 16655920), (2, 8327960), (4, 4163980), (5, 3331184), (8, 2081990), (10, 1665592), (16, 1040995), (17, 979760), (20, 832796), (34, 489880), (37, 450160), (40, 416398), (68, 244940), (74, 225080), (80, 208199), (85, 195952), (136, 122470), (148, 112540), (170, 97976), (185, 90032), (272, 61235), (296, 56270), (331, 50320), (340, 48988), (370, 45016), (592, 28135), (629, 26480), (662, 25160), (680, 24494), (740, 22508), (1258, 13240), (1324, 12580), (1360, 12247), (1480, 11254), (1655, 10064), (2516, 6620), (2648, 6290), (2960, 5627), (3145, 5296), (3310, 5032)]