19011590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 20905210

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 43, 65, 86, 95, 130, 179, 190, 215, 247, 358, 430, 494, 559, 817, 895, 1118, 1235, 1634, 1790, 2327, 2470, 2795, 3401, 4085, 4654, 5590, 6802, 7697, 8170, 10621, 11635, 15394, 17005, 21242, 23270, 34010, 38485, 44213, 53105, 76970, 88426, 100061, 106210, 146243, 200122, 221065, 292486, 442130, 500305, 731215, 1000610, 1462430, 1901159, 3802318, 9505795, 19011590]

約数ペア:

[(1, 19011590), (2, 9505795), (5, 3802318), (10, 1901159), (13, 1462430), (19, 1000610), (26, 731215), (38, 500305), (43, 442130), (65, 292486), (86, 221065), (95, 200122), (130, 146243), (179, 106210), (190, 100061), (215, 88426), (247, 76970), (358, 53105), (430, 44213), (494, 38485), (559, 34010), (817, 23270), (895, 21242), (1118, 17005), (1235, 15394), (1634, 11635), (1790, 10621), (2327, 8170), (2470, 7697), (2795, 6802), (3401, 5590), (4085, 4654)]