212537920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{397}}^1$

素因数の和:660

約数の個数: 112

約数和(自身を含む): 582289920

約数和(自身を除く): 369752000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 239, 280, 320, 397, 448, 478, 560, 794, 956, 1120, 1195, 1588, 1673, 1912, 1985, 2240, 2390, 2779, 3176, 3346, 3824, 3970, 4780, 5558, 6352, 6692, 7648, 7940, 8365, 9560, 11116, 12704, 13384, 13895, 15296, 15880, 16730, 19120, 22232, 25408, 26768, 27790, 31760, 33460, 38240, 44464, 53536, 55580, 63520, 66920, 76480, 88928, 94883, 107072, 111160, 127040, 133840, 177856, 189766, 222320, 267680, 379532, 444640, 474415, 535360, 664181, 759064, 889280, 948830, 1328362, 1518128, 1897660, 2656724, 3036256, 3320905, 3795320, 5313448, 6072512, 6641810, 7590640, 10626896, 13283620, 15181280, 21253792, 26567240, 30362560, 42507584, 53134480, 106268960, 212537920]

約数ペア:

[(1, 212537920), (2, 106268960), (4, 53134480), (5, 42507584), (7, 30362560), (8, 26567240), (10, 21253792), (14, 15181280), (16, 13283620), (20, 10626896), (28, 7590640), (32, 6641810), (35, 6072512), (40, 5313448), (56, 3795320), (64, 3320905), (70, 3036256), (80, 2656724), (112, 1897660), (140, 1518128), (160, 1328362), (224, 948830), (239, 889280), (280, 759064), (320, 664181), (397, 535360), (448, 474415), (478, 444640), (560, 379532), (794, 267680), (956, 222320), (1120, 189766), (1195, 177856), (1588, 133840), (1673, 127040), (1912, 111160), (1985, 107072), (2240, 94883), (2390, 88928), (2779, 76480), (3176, 66920), (3346, 63520), (3824, 55580), (3970, 53536), (4780, 44464), (5558, 38240), (6352, 33460), (6692, 31760), (7648, 27790), (7940, 26768), (8365, 25408), (9560, 22232), (11116, 19120), (12704, 16730), (13384, 15880), (13895, 15296)]