20121911830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1\times {\mathrm{4007}}^1$

素因数の和:4309

約数の個数: 64

約数和(自身を含む): 38008922112

約数和(自身を除く): 17887010282

約数列:

[1, 2, 5, 10, 31, 62, 97, 155, 167, 194, 310, 334, 485, 835, 970, 1670, 3007, 4007, 5177, 6014, 8014, 10354, 15035, 16199, 20035, 25885, 30070, 32398, 40070, 51770, 80995, 124217, 161990, 248434, 388679, 502169, 621085, 669169, 777358, 1004338, 1242170, 1338338, 1943395, 2510845, 3345845, 3886790, 5021690, 6691690, 12049049, 20744239, 24098098, 41488478, 60245245, 64909393, 103721195, 120490490, 129818786, 207442390, 324546965, 649093930, 2012191183, 4024382366, 10060955915, 20121911830]

約数ペア:

[(1, 20121911830), (2, 10060955915), (5, 4024382366), (10, 2012191183), (31, 649093930), (62, 324546965), (97, 207442390), (155, 129818786), (167, 120490490), (194, 103721195), (310, 64909393), (334, 60245245), (485, 41488478), (835, 24098098), (970, 20744239), (1670, 12049049), (3007, 6691690), (4007, 5021690), (5177, 3886790), (6014, 3345845), (8014, 2510845), (10354, 1943395), (15035, 1338338), (16199, 1242170), (20035, 1004338), (25885, 777358), (30070, 669169), (32398, 621085), (40070, 502169), (51770, 388679), (80995, 248434), (124217, 161990)]