1900515820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2557}}^1\times {\mathrm{5309}}^1$

素因数の和:7882

約数の個数: 48

約数和(自身を含む): 4563881280

約数和(自身を除く): 2663365460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2557, 5114, 5309, 10228, 10618, 12785, 17899, 21236, 25570, 26545, 35798, 37163, 51140, 53090, 71596, 74326, 89495, 106180, 148652, 178990, 185815, 357980, 371630, 743260, 13575113, 27150226, 54300452, 67875565, 95025791, 135751130, 190051582, 271502260, 380103164, 475128955, 950257910, 1900515820]

約数ペア:

[(1, 1900515820), (2, 950257910), (4, 475128955), (5, 380103164), (7, 271502260), (10, 190051582), (14, 135751130), (20, 95025791), (28, 67875565), (35, 54300452), (70, 27150226), (140, 13575113), (2557, 743260), (5114, 371630), (5309, 357980), (10228, 185815), (10618, 178990), (12785, 148652), (17899, 106180), (21236, 89495), (25570, 74326), (26545, 71596), (35798, 53090), (37163, 51140)]