20845020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1651

約数の個数: 96

約数和(自身を含む): 68898816

約数和(自身を除く): 48053796

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1601, 1860, 2170, 2604, 3202, 3255, 4340, 4803, 6404, 6510, 8005, 9606, 11207, 13020, 16010, 19212, 22414, 24015, 32020, 33621, 44828, 48030, 49631, 56035, 67242, 96060, 99262, 112070, 134484, 148893, 168105, 198524, 224140, 248155, 297786, 336210, 347417, 496310, 595572, 672420, 694834, 744465, 992620, 1042251, 1389668, 1488930, 1737085, 2084502, 2977860, 3474170, 4169004, 5211255, 6948340, 10422510, 20845020]

約数ペア:

[(1, 20845020), (2, 10422510), (3, 6948340), (4, 5211255), (5, 4169004), (6, 3474170), (7, 2977860), (10, 2084502), (12, 1737085), (14, 1488930), (15, 1389668), (20, 1042251), (21, 992620), (28, 744465), (30, 694834), (31, 672420), (35, 595572), (42, 496310), (60, 347417), (62, 336210), (70, 297786), (84, 248155), (93, 224140), (105, 198524), (124, 168105), (140, 148893), (155, 134484), (186, 112070), (210, 99262), (217, 96060), (310, 67242), (372, 56035), (420, 49631), (434, 48030), (465, 44828), (620, 33621), (651, 32020), (868, 24015), (930, 22414), (1085, 19212), (1302, 16010), (1601, 13020), (1860, 11207), (2170, 9606), (2604, 8005), (3202, 6510), (3255, 6404), (4340, 4803)]