20363980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 53738496

約数和(自身を除く): 33374516

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 67, 70, 91, 130, 134, 140, 167, 182, 260, 268, 334, 335, 364, 455, 469, 668, 670, 835, 871, 910, 938, 1169, 1340, 1670, 1742, 1820, 1876, 2171, 2338, 2345, 3340, 3484, 4342, 4355, 4676, 4690, 5845, 6097, 8684, 8710, 9380, 10855, 11189, 11690, 12194, 15197, 17420, 21710, 22378, 23380, 24388, 30394, 30485, 43420, 44756, 55945, 60788, 60970, 75985, 78323, 111890, 121940, 145457, 151970, 156646, 223780, 290914, 303940, 313292, 391615, 581828, 727285, 783230, 1018199, 1454570, 1566460, 2036398, 2909140, 4072796, 5090995, 10181990, 20363980]

約数ペア:

[(1, 20363980), (2, 10181990), (4, 5090995), (5, 4072796), (7, 2909140), (10, 2036398), (13, 1566460), (14, 1454570), (20, 1018199), (26, 783230), (28, 727285), (35, 581828), (52, 391615), (65, 313292), (67, 303940), (70, 290914), (91, 223780), (130, 156646), (134, 151970), (140, 145457), (167, 121940), (182, 111890), (260, 78323), (268, 75985), (334, 60970), (335, 60788), (364, 55945), (455, 44756), (469, 43420), (668, 30485), (670, 30394), (835, 24388), (871, 23380), (910, 22378), (938, 21710), (1169, 17420), (1340, 15197), (1670, 12194), (1742, 11690), (1820, 11189), (1876, 10855), (2171, 9380), (2338, 8710), (2345, 8684), (3340, 6097), (3484, 5845), (4342, 4690), (4355, 4676)]