16306520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 38435040

約数和(自身を除く): 22128520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 163, 164, 205, 244, 305, 326, 328, 410, 488, 610, 652, 815, 820, 1220, 1304, 1630, 1640, 2440, 2501, 3260, 5002, 6520, 6683, 9943, 10004, 12505, 13366, 19886, 20008, 25010, 26732, 33415, 39772, 49715, 50020, 53464, 66830, 79544, 99430, 100040, 133660, 198860, 267320, 397720, 407663, 815326, 1630652, 2038315, 3261304, 4076630, 8153260, 16306520]

約数ペア:

[(1, 16306520), (2, 8153260), (4, 4076630), (5, 3261304), (8, 2038315), (10, 1630652), (20, 815326), (40, 407663), (41, 397720), (61, 267320), (82, 198860), (122, 133660), (163, 100040), (164, 99430), (205, 79544), (244, 66830), (305, 53464), (326, 50020), (328, 49715), (410, 39772), (488, 33415), (610, 26732), (652, 25010), (815, 20008), (820, 19886), (1220, 13366), (1304, 12505), (1630, 10004), (1640, 9943), (2440, 6683), (2501, 6520), (3260, 5002)]