42157520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:324

約数の個数: 80

約数和(自身を含む): 102850560

約数和(自身を除く): 60693040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 89, 124, 155, 178, 191, 248, 310, 356, 382, 445, 496, 620, 712, 764, 890, 955, 1240, 1424, 1528, 1780, 1910, 2480, 2759, 3056, 3560, 3820, 5518, 5921, 7120, 7640, 11036, 11842, 13795, 15280, 16999, 22072, 23684, 27590, 29605, 33998, 44144, 47368, 55180, 59210, 67996, 84995, 94736, 110360, 118420, 135992, 169990, 220720, 236840, 271984, 339980, 473680, 526969, 679960, 1053938, 1359920, 2107876, 2634845, 4215752, 5269690, 8431504, 10539380, 21078760, 42157520]

約数ペア:

[(1, 42157520), (2, 21078760), (4, 10539380), (5, 8431504), (8, 5269690), (10, 4215752), (16, 2634845), (20, 2107876), (31, 1359920), (40, 1053938), (62, 679960), (80, 526969), (89, 473680), (124, 339980), (155, 271984), (178, 236840), (191, 220720), (248, 169990), (310, 135992), (356, 118420), (382, 110360), (445, 94736), (496, 84995), (620, 67996), (712, 59210), (764, 55180), (890, 47368), (955, 44144), (1240, 33998), (1424, 29605), (1528, 27590), (1780, 23684), (1910, 22072), (2480, 16999), (2759, 15280), (3056, 13795), (3560, 11842), (3820, 11036), (5518, 7640), (5921, 7120)]