19474980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:629

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 43666140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 521, 534, 623, 890, 1042, 1068, 1246, 1335, 1563, 1780, 1869, 2084, 2492, 2605, 2670, 3115, 3126, 3647, 3738, 5210, 5340, 6230, 6252, 7294, 7476, 7815, 9345, 10420, 10941, 12460, 14588, 15630, 18235, 18690, 21882, 31260, 36470, 37380, 43764, 46369, 54705, 72940, 92738, 109410, 139107, 185476, 218820, 231845, 278214, 324583, 463690, 556428, 649166, 695535, 927380, 973749, 1298332, 1391070, 1622915, 1947498, 2782140, 3245830, 3894996, 4868745, 6491660, 9737490, 19474980]

約数ペア:

[(1, 19474980), (2, 9737490), (3, 6491660), (4, 4868745), (5, 3894996), (6, 3245830), (7, 2782140), (10, 1947498), (12, 1622915), (14, 1391070), (15, 1298332), (20, 973749), (21, 927380), (28, 695535), (30, 649166), (35, 556428), (42, 463690), (60, 324583), (70, 278214), (84, 231845), (89, 218820), (105, 185476), (140, 139107), (178, 109410), (210, 92738), (267, 72940), (356, 54705), (420, 46369), (445, 43764), (521, 37380), (534, 36470), (623, 31260), (890, 21882), (1042, 18690), (1068, 18235), (1246, 15630), (1335, 14588), (1563, 12460), (1780, 10941), (1869, 10420), (2084, 9345), (2492, 7815), (2605, 7476), (2670, 7294), (3115, 6252), (3126, 6230), (3647, 5340), (3738, 5210)]