18399740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 22242820

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 295, 310, 503, 590, 620, 1006, 1180, 1829, 2012, 2515, 3658, 5030, 7316, 9145, 10060, 15593, 18290, 29677, 31186, 36580, 59354, 62372, 77965, 118708, 148385, 155930, 296770, 311860, 593540, 919987, 1839974, 3679948, 4599935, 9199870, 18399740]

約数ペア:

[(1, 18399740), (2, 9199870), (4, 4599935), (5, 3679948), (10, 1839974), (20, 919987), (31, 593540), (59, 311860), (62, 296770), (118, 155930), (124, 148385), (155, 118708), (236, 77965), (295, 62372), (310, 59354), (503, 36580), (590, 31186), (620, 29677), (1006, 18290), (1180, 15593), (1829, 10060), (2012, 9145), (2515, 7316), (3658, 5030)]