65280420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11699}}^1$

素因数の和:11745

約数の個数: 72

約数和(自身を含む): 204422400

約数和(自身を除く): 139141980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 11699, 23398, 35097, 46796, 58495, 70194, 105291, 116990, 140388, 175485, 210582, 233980, 350970, 362669, 421164, 526455, 701940, 725338, 1052910, 1088007, 1450676, 1813345, 2105820, 2176014, 3264021, 3626690, 4352028, 5440035, 6528042, 7253380, 10880070, 13056084, 16320105, 21760140, 32640210, 65280420]

約数ペア:

[(1, 65280420), (2, 32640210), (3, 21760140), (4, 16320105), (5, 13056084), (6, 10880070), (9, 7253380), (10, 6528042), (12, 5440035), (15, 4352028), (18, 3626690), (20, 3264021), (30, 2176014), (31, 2105820), (36, 1813345), (45, 1450676), (60, 1088007), (62, 1052910), (90, 725338), (93, 701940), (124, 526455), (155, 421164), (180, 362669), (186, 350970), (279, 233980), (310, 210582), (372, 175485), (465, 140388), (558, 116990), (620, 105291), (930, 70194), (1116, 58495), (1395, 46796), (1860, 35097), (2790, 23398), (5580, 11699)]