20045880

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:315

約数の個数: 160

約数和(自身を含む): 70567200

約数和(自身を除く): 50521320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 81, 90, 92, 108, 115, 120, 135, 138, 162, 180, 184, 207, 216, 230, 269, 270, 276, 324, 345, 360, 405, 414, 460, 538, 540, 552, 621, 648, 690, 807, 810, 828, 920, 1035, 1076, 1080, 1242, 1345, 1380, 1614, 1620, 1656, 1863, 2070, 2152, 2421, 2484, 2690, 2760, 3105, 3228, 3240, 3726, 4035, 4140, 4842, 4968, 5380, 6187, 6210, 6456, 7263, 7452, 8070, 8280, 9315, 9684, 10760, 12105, 12374, 12420, 14526, 14904, 16140, 18561, 18630, 19368, 21789, 24210, 24748, 24840, 29052, 30935, 32280, 36315, 37122, 37260, 43578, 48420, 49496, 55683, 58104, 61870, 72630, 74244, 74520, 87156, 92805, 96840, 108945, 111366, 123740, 145260, 148488, 167049, 174312, 185610, 217890, 222732, 247480, 278415, 290520, 334098, 371220, 435780, 445464, 501147, 556830, 668196, 742440, 835245, 871560, 1002294, 1113660, 1336392, 1670490, 2004588, 2227320, 2505735, 3340980, 4009176, 5011470, 6681960, 10022940, 20045880]

約数ペア:

[(1, 20045880), (2, 10022940), (3, 6681960), (4, 5011470), (5, 4009176), (6, 3340980), (8, 2505735), (9, 2227320), (10, 2004588), (12, 1670490), (15, 1336392), (18, 1113660), (20, 1002294), (23, 871560), (24, 835245), (27, 742440), (30, 668196), (36, 556830), (40, 501147), (45, 445464), (46, 435780), (54, 371220), (60, 334098), (69, 290520), (72, 278415), (81, 247480), (90, 222732), (92, 217890), (108, 185610), (115, 174312), (120, 167049), (135, 148488), (138, 145260), (162, 123740), (180, 111366), (184, 108945), (207, 96840), (216, 92805), (230, 87156), (269, 74520), (270, 74244), (276, 72630), (324, 61870), (345, 58104), (360, 55683), (405, 49496), (414, 48420), (460, 43578), (538, 37260), (540, 37122), (552, 36315), (621, 32280), (648, 30935), (690, 29052), (807, 24840), (810, 24748), (828, 24210), (920, 21789), (1035, 19368), (1076, 18630), (1080, 18561), (1242, 16140), (1345, 14904), (1380, 14526), (1614, 12420), (1620, 12374), (1656, 12105), (1863, 10760), (2070, 9684), (2152, 9315), (2421, 8280), (2484, 8070), (2690, 7452), (2760, 7263), (3105, 6456), (3228, 6210), (3240, 6187), (3726, 5380), (4035, 4968), (4140, 4842)]