18997261420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1\times {\mathrm{54499}}^1$

素因数の和:55138

約数の個数: 48

約数和(自身を含む): 41339340000

約数和(自身を除く): 22342078580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 601, 1202, 2404, 3005, 6010, 12020, 17429, 34858, 54499, 69716, 87145, 108998, 174290, 217996, 272495, 348580, 544990, 1089980, 1580471, 3160942, 6321884, 7902355, 15804710, 31609420, 32753899, 65507798, 131015596, 163769495, 327538990, 655077980, 949863071, 1899726142, 3799452284, 4749315355, 9498630710, 18997261420]

約数ペア:

[(1, 18997261420), (2, 9498630710), (4, 4749315355), (5, 3799452284), (10, 1899726142), (20, 949863071), (29, 655077980), (58, 327538990), (116, 163769495), (145, 131015596), (290, 65507798), (580, 32753899), (601, 31609420), (1202, 15804710), (2404, 7902355), (3005, 6321884), (6010, 3160942), (12020, 1580471), (17429, 1089980), (34858, 544990), (54499, 348580), (69716, 272495), (87145, 217996), (108998, 174290)]