20628240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 69209856

約数和(自身を除く): 48581616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 37, 40, 46, 48, 60, 69, 74, 80, 92, 101, 111, 115, 120, 138, 148, 184, 185, 202, 222, 230, 240, 276, 296, 303, 345, 368, 370, 404, 444, 460, 505, 552, 555, 592, 606, 690, 740, 808, 851, 888, 920, 1010, 1104, 1110, 1212, 1380, 1480, 1515, 1616, 1702, 1776, 1840, 2020, 2220, 2323, 2424, 2553, 2760, 2960, 3030, 3404, 3737, 4040, 4255, 4440, 4646, 4848, 5106, 5520, 6060, 6808, 6969, 7474, 8080, 8510, 8880, 9292, 10212, 11211, 11615, 12120, 12765, 13616, 13938, 14948, 17020, 18584, 18685, 20424, 22422, 23230, 24240, 25530, 27876, 29896, 34040, 34845, 37168, 37370, 40848, 44844, 46460, 51060, 55752, 56055, 59792, 68080, 69690, 74740, 85951, 89688, 92920, 102120, 111504, 112110, 139380, 149480, 171902, 179376, 185840, 204240, 224220, 257853, 278760, 298960, 343804, 429755, 448440, 515706, 557520, 687608, 859510, 896880, 1031412, 1289265, 1375216, 1719020, 2062824, 2578530, 3438040, 4125648, 5157060, 6876080, 10314120, 20628240]

約数ペア:

[(1, 20628240), (2, 10314120), (3, 6876080), (4, 5157060), (5, 4125648), (6, 3438040), (8, 2578530), (10, 2062824), (12, 1719020), (15, 1375216), (16, 1289265), (20, 1031412), (23, 896880), (24, 859510), (30, 687608), (37, 557520), (40, 515706), (46, 448440), (48, 429755), (60, 343804), (69, 298960), (74, 278760), (80, 257853), (92, 224220), (101, 204240), (111, 185840), (115, 179376), (120, 171902), (138, 149480), (148, 139380), (184, 112110), (185, 111504), (202, 102120), (222, 92920), (230, 89688), (240, 85951), (276, 74740), (296, 69690), (303, 68080), (345, 59792), (368, 56055), (370, 55752), (404, 51060), (444, 46460), (460, 44844), (505, 40848), (552, 37370), (555, 37168), (592, 34845), (606, 34040), (690, 29896), (740, 27876), (808, 25530), (851, 24240), (888, 23230), (920, 22422), (1010, 20424), (1104, 18685), (1110, 18584), (1212, 17020), (1380, 14948), (1480, 13938), (1515, 13616), (1616, 12765), (1702, 12120), (1776, 11615), (1840, 11211), (2020, 10212), (2220, 9292), (2323, 8880), (2424, 8510), (2553, 8080), (2760, 7474), (2960, 6969), (3030, 6808), (3404, 6060), (3737, 5520), (4040, 5106), (4255, 4848), (4440, 4646)]