212443980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{505819}}^1$

素因数の和:505838

約数の個数: 48

約数和(自身を含む): 679822080

約数和(自身を除く): 467378100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 505819, 1011638, 1517457, 2023276, 2529095, 3034914, 3540733, 5058190, 6069828, 7081466, 7587285, 10116380, 10622199, 14162932, 15174570, 17703665, 21244398, 30349140, 35407330, 42488796, 53110995, 70814660, 106221990, 212443980]

約数ペア:

[(1, 212443980), (2, 106221990), (3, 70814660), (4, 53110995), (5, 42488796), (6, 35407330), (7, 30349140), (10, 21244398), (12, 17703665), (14, 15174570), (15, 14162932), (20, 10622199), (21, 10116380), (28, 7587285), (30, 7081466), (35, 6069828), (42, 5058190), (60, 3540733), (70, 3034914), (84, 2529095), (105, 2023276), (140, 1517457), (210, 1011638), (420, 505819)]