71945820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:609

約数の個数: 120

約数和(自身を含む): 228690000

約数和(自身を除く): 156744180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 89, 90, 108, 135, 162, 178, 180, 267, 270, 324, 356, 405, 445, 499, 534, 540, 801, 810, 890, 998, 1068, 1335, 1497, 1602, 1620, 1780, 1996, 2403, 2495, 2670, 2994, 3204, 4005, 4491, 4806, 4990, 5340, 5988, 7209, 7485, 8010, 8982, 9612, 9980, 12015, 13473, 14418, 14970, 16020, 17964, 22455, 24030, 26946, 28836, 29940, 36045, 40419, 44411, 44910, 48060, 53892, 67365, 72090, 80838, 88822, 89820, 133233, 134730, 144180, 161676, 177644, 202095, 222055, 266466, 269460, 399699, 404190, 444110, 532932, 666165, 799398, 808380, 888220, 1199097, 1332330, 1598796, 1998495, 2398194, 2664660, 3597291, 3996990, 4796388, 5995485, 7194582, 7993980, 11990970, 14389164, 17986455, 23981940, 35972910, 71945820]

約数ペア:

[(1, 71945820), (2, 35972910), (3, 23981940), (4, 17986455), (5, 14389164), (6, 11990970), (9, 7993980), (10, 7194582), (12, 5995485), (15, 4796388), (18, 3996990), (20, 3597291), (27, 2664660), (30, 2398194), (36, 1998495), (45, 1598796), (54, 1332330), (60, 1199097), (81, 888220), (89, 808380), (90, 799398), (108, 666165), (135, 532932), (162, 444110), (178, 404190), (180, 399699), (267, 269460), (270, 266466), (324, 222055), (356, 202095), (405, 177644), (445, 161676), (499, 144180), (534, 134730), (540, 133233), (801, 89820), (810, 88822), (890, 80838), (998, 72090), (1068, 67365), (1335, 53892), (1497, 48060), (1602, 44910), (1620, 44411), (1780, 40419), (1996, 36045), (2403, 29940), (2495, 28836), (2670, 26946), (2994, 24030), (3204, 22455), (4005, 17964), (4491, 16020), (4806, 14970), (4990, 14418), (5340, 13473), (5988, 12015), (7209, 9980), (7485, 9612), (8010, 8982)]