219675920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{313}}^1$

素因数の和:640

約数の個数: 80

約数和(自身を含む): 530775552

約数和(自身を除く): 311099632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 283, 310, 313, 496, 566, 620, 626, 1132, 1240, 1252, 1415, 1565, 2264, 2480, 2504, 2830, 3130, 4528, 5008, 5660, 6260, 8773, 9703, 11320, 12520, 17546, 19406, 22640, 25040, 35092, 38812, 43865, 48515, 70184, 77624, 87730, 88579, 97030, 140368, 155248, 175460, 177158, 194060, 350920, 354316, 388120, 442895, 701840, 708632, 776240, 885790, 1417264, 1771580, 2745949, 3543160, 5491898, 7086320, 10983796, 13729745, 21967592, 27459490, 43935184, 54918980, 109837960, 219675920]

約数ペア:

[(1, 219675920), (2, 109837960), (4, 54918980), (5, 43935184), (8, 27459490), (10, 21967592), (16, 13729745), (20, 10983796), (31, 7086320), (40, 5491898), (62, 3543160), (80, 2745949), (124, 1771580), (155, 1417264), (248, 885790), (283, 776240), (310, 708632), (313, 701840), (496, 442895), (566, 388120), (620, 354316), (626, 350920), (1132, 194060), (1240, 177158), (1252, 175460), (1415, 155248), (1565, 140368), (2264, 97030), (2480, 88579), (2504, 87730), (2830, 77624), (3130, 70184), (4528, 48515), (5008, 43865), (5660, 38812), (6260, 35092), (8773, 25040), (9703, 22640), (11320, 19406), (12520, 17546)]