155037820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:443

約数の個数: 96

約数和(自身を含む): 388362240

約数和(自身を除く): 233324420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 139, 140, 155, 217, 257, 278, 310, 434, 514, 556, 620, 695, 868, 973, 1028, 1085, 1285, 1390, 1799, 1946, 2170, 2570, 2780, 3598, 3892, 4309, 4340, 4865, 5140, 7196, 7967, 8618, 8995, 9730, 15934, 17236, 17990, 19460, 21545, 30163, 31868, 35723, 35980, 39835, 43090, 55769, 60326, 71446, 79670, 86180, 111538, 120652, 142892, 150815, 159340, 178615, 223076, 250061, 278845, 301630, 357230, 500122, 557690, 603260, 714460, 1000244, 1107413, 1115380, 1250305, 2214826, 2500610, 4429652, 5001220, 5537065, 7751891, 11074130, 15503782, 22148260, 31007564, 38759455, 77518910, 155037820]

約数ペア:

[(1, 155037820), (2, 77518910), (4, 38759455), (5, 31007564), (7, 22148260), (10, 15503782), (14, 11074130), (20, 7751891), (28, 5537065), (31, 5001220), (35, 4429652), (62, 2500610), (70, 2214826), (124, 1250305), (139, 1115380), (140, 1107413), (155, 1000244), (217, 714460), (257, 603260), (278, 557690), (310, 500122), (434, 357230), (514, 301630), (556, 278845), (620, 250061), (695, 223076), (868, 178615), (973, 159340), (1028, 150815), (1085, 142892), (1285, 120652), (1390, 111538), (1799, 86180), (1946, 79670), (2170, 71446), (2570, 60326), (2780, 55769), (3598, 43090), (3892, 39835), (4309, 35980), (4340, 35723), (4865, 31868), (5140, 30163), (7196, 21545), (7967, 19460), (8618, 17990), (8995, 17236), (9730, 15934)]