78477420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26693}}^1$

素因数の和:26719

約数の個数: 72

約数和(自身を含む): 255621744

約数和(自身を除く): 177144324

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, 26693, 53386, 80079, 106772, 133465, 160158, 186851, 266930, 320316, 373702, 400395, 533860, 560553, 747404, 800790, 934255, 1121106, 1307957, 1601580, 1868510, 2242212, 2615914, 2802765, 3737020, 3923871, 5231828, 5605530, 6539785, 7847742, 11211060, 13079570, 15695484, 19619355, 26159140, 39238710, 78477420]

約数ペア:

[(1, 78477420), (2, 39238710), (3, 26159140), (4, 19619355), (5, 15695484), (6, 13079570), (7, 11211060), (10, 7847742), (12, 6539785), (14, 5605530), (15, 5231828), (20, 3923871), (21, 3737020), (28, 2802765), (30, 2615914), (35, 2242212), (42, 1868510), (49, 1601580), (60, 1307957), (70, 1121106), (84, 934255), (98, 800790), (105, 747404), (140, 560553), (147, 533860), (196, 400395), (210, 373702), (245, 320316), (294, 266930), (420, 186851), (490, 160158), (588, 133465), (735, 106772), (980, 80079), (1470, 53386), (2940, 26693)]