27720407820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66000971}}^1$

素因数の和:66000990

約数の個数: 48

約数和(自身を含む): 88705306368

約数和(自身を除く): 60984898548

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, 66000971, 132001942, 198002913, 264003884, 330004855, 396005826, 462006797, 660009710, 792011652, 924013594, 990014565, 1320019420, 1386020391, 1848027188, 1980029130, 2310033985, 2772040782, 3960058260, 4620067970, 5544081564, 6930101955, 9240135940, 13860203910, 27720407820]

約数ペア:

[(1, 27720407820), (2, 13860203910), (3, 9240135940), (4, 6930101955), (5, 5544081564), (6, 4620067970), (7, 3960058260), (10, 2772040782), (12, 2310033985), (14, 1980029130), (15, 1848027188), (20, 1386020391), (21, 1320019420), (28, 990014565), (30, 924013594), (35, 792011652), (42, 660009710), (60, 462006797), (70, 396005826), (84, 330004855), (105, 264003884), (140, 198002913), (210, 132001942), (420, 66000971)]