623818020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{212183}}^1$

素因数の和:212209

約数の個数: 72

約数和(自身を含む): 2031873984

約数和(自身を除く): 1408055964

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, 212183, 424366, 636549, 848732, 1060915, 1273098, 1485281, 2121830, 2546196, 2970562, 3182745, 4243660, 4455843, 5941124, 6365490, 7426405, 8911686, 10396967, 12730980, 14852810, 17823372, 20793934, 22279215, 29705620, 31190901, 41587868, 44558430, 51984835, 62381802, 89116860, 103969670, 124763604, 155954505, 207939340, 311909010, 623818020]

約数ペア:

[(1, 623818020), (2, 311909010), (3, 207939340), (4, 155954505), (5, 124763604), (6, 103969670), (7, 89116860), (10, 62381802), (12, 51984835), (14, 44558430), (15, 41587868), (20, 31190901), (21, 29705620), (28, 22279215), (30, 20793934), (35, 17823372), (42, 14852810), (49, 12730980), (60, 10396967), (70, 8911686), (84, 7426405), (98, 6365490), (105, 5941124), (140, 4455843), (147, 4243660), (196, 3182745), (210, 2970562), (245, 2546196), (294, 2121830), (420, 1485281), (490, 1273098), (588, 1060915), (735, 848732), (980, 636549), (1470, 424366), (2940, 212183)]