2019901590

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{56249}}^1$

素因数の和:56291

約数の個数: 128

約数和(自身を含む): 6480000000

約数和(自身を除く): 4460098410

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 90, 95, 105, 114, 126, 133, 135, 171, 189, 190, 210, 266, 270, 285, 315, 342, 378, 399, 513, 570, 630, 665, 798, 855, 945, 1026, 1197, 1330, 1710, 1890, 1995, 2394, 2565, 3591, 3990, 5130, 5985, 7182, 11970, 17955, 35910, 56249, 112498, 168747, 281245, 337494, 393743, 506241, 562490, 787486, 843735, 1012482, 1068731, 1181229, 1518723, 1687470, 1968715, 2137462, 2362458, 2531205, 3037446, 3206193, 3543687, 3937430, 5062410, 5343655, 5906145, 6412386, 7087374, 7481117, 7593615, 9618579, 10631061, 10687310, 11812290, 14962234, 15187230, 16030965, 17718435, 19237158, 21262122, 22443351, 28855737, 32061930, 35436870, 37405585, 44886702, 48092895, 53155305, 57711474, 67330053, 74811170, 96185790, 106310610, 112216755, 134660106, 144278685, 201990159, 224433510, 288557370, 336650265, 403980318, 673300530, 1009950795, 2019901590]

約数ペア:

[(1, 2019901590), (2, 1009950795), (3, 673300530), (5, 403980318), (6, 336650265), (7, 288557370), (9, 224433510), (10, 201990159), (14, 144278685), (15, 134660106), (18, 112216755), (19, 106310610), (21, 96185790), (27, 74811170), (30, 67330053), (35, 57711474), (38, 53155305), (42, 48092895), (45, 44886702), (54, 37405585), (57, 35436870), (63, 32061930), (70, 28855737), (90, 22443351), (95, 21262122), (105, 19237158), (114, 17718435), (126, 16030965), (133, 15187230), (135, 14962234), (171, 11812290), (189, 10687310), (190, 10631061), (210, 9618579), (266, 7593615), (270, 7481117), (285, 7087374), (315, 6412386), (342, 5906145), (378, 5343655), (399, 5062410), (513, 3937430), (570, 3543687), (630, 3206193), (665, 3037446), (798, 2531205), (855, 2362458), (945, 2137462), (1026, 1968715), (1197, 1687470), (1330, 1518723), (1710, 1181229), (1890, 1068731), (1995, 1012482), (2394, 843735), (2565, 787486), (3591, 562490), (3990, 506241), (5130, 393743), (5985, 337494), (7182, 281245), (11970, 168747), (17955, 112498), (35910, 56249)]