400284920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{617}}^1$

素因数の和:973

約数の個数: 96

約数和(自身を含む): 1052552880

約数和(自身を除く): 652267960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 331, 392, 490, 617, 662, 980, 1234, 1324, 1655, 1960, 2317, 2468, 2648, 3085, 3310, 4319, 4634, 4936, 6170, 6620, 8638, 9268, 11585, 12340, 13240, 16219, 17276, 18536, 21595, 23170, 24680, 30233, 32438, 34552, 43190, 46340, 60466, 64876, 81095, 86380, 92680, 120932, 129752, 151165, 162190, 172760, 204227, 241864, 302330, 324380, 408454, 604660, 648760, 816908, 1021135, 1209320, 1429589, 1633816, 2042270, 2859178, 4084540, 5718356, 7147945, 8169080, 10007123, 11436712, 14295890, 20014246, 28591780, 40028492, 50035615, 57183560, 80056984, 100071230, 200142460, 400284920]

約数ペア:

[(1, 400284920), (2, 200142460), (4, 100071230), (5, 80056984), (7, 57183560), (8, 50035615), (10, 40028492), (14, 28591780), (20, 20014246), (28, 14295890), (35, 11436712), (40, 10007123), (49, 8169080), (56, 7147945), (70, 5718356), (98, 4084540), (140, 2859178), (196, 2042270), (245, 1633816), (280, 1429589), (331, 1209320), (392, 1021135), (490, 816908), (617, 648760), (662, 604660), (980, 408454), (1234, 324380), (1324, 302330), (1655, 241864), (1960, 204227), (2317, 172760), (2468, 162190), (2648, 151165), (3085, 129752), (3310, 120932), (4319, 92680), (4634, 86380), (4936, 81095), (6170, 64876), (6620, 60466), (8638, 46340), (9268, 43190), (11585, 34552), (12340, 32438), (13240, 30233), (16219, 24680), (17276, 23170), (18536, 21595)]