20440560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^3$

素因数の和:92

約数の個数: 160

約数和(自身を含む): 75709440

約数和(自身を除く): 55268880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 529, 552, 560, 644, 690, 805, 840, 920, 966, 1058, 1104, 1288, 1380, 1587, 1610, 1680, 1840, 1932, 2116, 2415, 2576, 2645, 2760, 3174, 3220, 3703, 3864, 4232, 4830, 5290, 5520, 6348, 6440, 7406, 7728, 7935, 8464, 9660, 10580, 11109, 12167, 12696, 12880, 14812, 15870, 18515, 19320, 21160, 22218, 24334, 25392, 29624, 31740, 36501, 37030, 38640, 42320, 44436, 48668, 55545, 59248, 60835, 63480, 73002, 74060, 85169, 88872, 97336, 111090, 121670, 126960, 146004, 148120, 170338, 177744, 182505, 194672, 222180, 243340, 255507, 292008, 296240, 340676, 365010, 425845, 444360, 486680, 511014, 584016, 681352, 730020, 851690, 888720, 973360, 1022028, 1277535, 1362704, 1460040, 1703380, 2044056, 2555070, 2920080, 3406760, 4088112, 5110140, 6813520, 10220280, 20440560]

約数ペア:

[(1, 20440560), (2, 10220280), (3, 6813520), (4, 5110140), (5, 4088112), (6, 3406760), (7, 2920080), (8, 2555070), (10, 2044056), (12, 1703380), (14, 1460040), (15, 1362704), (16, 1277535), (20, 1022028), (21, 973360), (23, 888720), (24, 851690), (28, 730020), (30, 681352), (35, 584016), (40, 511014), (42, 486680), (46, 444360), (48, 425845), (56, 365010), (60, 340676), (69, 296240), (70, 292008), (80, 255507), (84, 243340), (92, 222180), (105, 194672), (112, 182505), (115, 177744), (120, 170338), (138, 148120), (140, 146004), (161, 126960), (168, 121670), (184, 111090), (210, 97336), (230, 88872), (240, 85169), (276, 74060), (280, 73002), (322, 63480), (336, 60835), (345, 59248), (368, 55545), (420, 48668), (460, 44436), (483, 42320), (529, 38640), (552, 37030), (560, 36501), (644, 31740), (690, 29624), (805, 25392), (840, 24334), (920, 22218), (966, 21160), (1058, 19320), (1104, 18515), (1288, 15870), (1380, 14812), (1587, 12880), (1610, 12696), (1680, 12167), (1840, 11109), (1932, 10580), (2116, 9660), (2415, 8464), (2576, 7935), (2645, 7728), (2760, 7406), (3174, 6440), (3220, 6348), (3703, 5520), (3864, 5290), (4232, 4830)]