78283380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26627}}^1$

素因数の和:26653

約数の個数: 72

約数和(自身を含む): 254989728

約数和(自身を除く): 176706348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26627, 53254, 79881, 106508, 133135, 159762, 186389, 266270, 319524, 372778, 399405, 532540, 559167, 745556, 798810, 931945, 1118334, 1304723, 1597620, 1863890, 2236668, 2609446, 2795835, 3727780, 3914169, 5218892, 5591670, 6523615, 7828338, 11183340, 13047230, 15656676, 19570845, 26094460, 39141690, 78283380]

約数ペア:

[(1, 78283380), (2, 39141690), (3, 26094460), (4, 19570845), (5, 15656676), (6, 13047230), (7, 11183340), (10, 7828338), (12, 6523615), (14, 5591670), (15, 5218892), (20, 3914169), (21, 3727780), (28, 2795835), (30, 2609446), (35, 2236668), (42, 1863890), (49, 1597620), (60, 1304723), (70, 1118334), (84, 931945), (98, 798810), (105, 745556), (140, 559167), (147, 532540), (196, 399405), (210, 372778), (245, 319524), (294, 266270), (420, 186389), (490, 159762), (588, 133135), (735, 106508), (980, 79881), (1470, 53254), (2940, 26627)]