2020165140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{687131}}^1$

素因数の和:687157

約数の個数: 72

約数和(自身を含む): 6579976032

約数和(自身を除く): 4559810892

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, 687131, 1374262, 2061393, 2748524, 3435655, 4122786, 4809917, 6871310, 8245572, 9619834, 10306965, 13742620, 14429751, 19239668, 20613930, 24049585, 28859502, 33669419, 41227860, 48099170, 57719004, 67338838, 72148755, 96198340, 101008257, 134677676, 144297510, 168347095, 202016514, 288595020, 336694190, 404033028, 505041285, 673388380, 1010082570, 2020165140]

約数ペア:

[(1, 2020165140), (2, 1010082570), (3, 673388380), (4, 505041285), (5, 404033028), (6, 336694190), (7, 288595020), (10, 202016514), (12, 168347095), (14, 144297510), (15, 134677676), (20, 101008257), (21, 96198340), (28, 72148755), (30, 67338838), (35, 57719004), (42, 48099170), (49, 41227860), (60, 33669419), (70, 28859502), (84, 24049585), (98, 20613930), (105, 19239668), (140, 14429751), (147, 13742620), (196, 10306965), (210, 9619834), (245, 8245572), (294, 6871310), (420, 4809917), (490, 4122786), (588, 3435655), (735, 2748524), (980, 2061393), (1470, 1374262), (2940, 687131)]