393886920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{468913}}^1$

素因数の和:468934

約数の個数: 64

約数和(自身を含む): 1350472320

約数和(自身を除く): 956585400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 468913, 937826, 1406739, 1875652, 2344565, 2813478, 3282391, 3751304, 4689130, 5626956, 6564782, 7033695, 9378260, 9847173, 11253912, 13129564, 14067390, 16411955, 18756520, 19694346, 26259128, 28134780, 32823910, 39388692, 49235865, 56269560, 65647820, 78777384, 98471730, 131295640, 196943460, 393886920]

約数ペア:

[(1, 393886920), (2, 196943460), (3, 131295640), (4, 98471730), (5, 78777384), (6, 65647820), (7, 56269560), (8, 49235865), (10, 39388692), (12, 32823910), (14, 28134780), (15, 26259128), (20, 19694346), (21, 18756520), (24, 16411955), (28, 14067390), (30, 13129564), (35, 11253912), (40, 9847173), (42, 9378260), (56, 7033695), (60, 6564782), (70, 5626956), (84, 4689130), (105, 3751304), (120, 3282391), (140, 2813478), (168, 2344565), (210, 1875652), (280, 1406739), (420, 937826), (840, 468913)]