128573380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1589

約数の個数: 96

約数和(自身を含む): 324293760

約数和(自身を除く): 195720380

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 38, 52, 65, 68, 76, 85, 95, 130, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 646, 884, 988, 1105, 1235, 1292, 1531, 1615, 2210, 2470, 3062, 3230, 4199, 4420, 4940, 6124, 6460, 7655, 8398, 15310, 16796, 19903, 20995, 26027, 29089, 30620, 39806, 41990, 52054, 58178, 79612, 83980, 99515, 104108, 116356, 130135, 145445, 199030, 260270, 290890, 338351, 378157, 398060, 494513, 520540, 581780, 676702, 756314, 989026, 1353404, 1512628, 1691755, 1890785, 1978052, 2472565, 3383510, 3781570, 4945130, 6428669, 6767020, 7563140, 9890260, 12857338, 25714676, 32143345, 64286690, 128573380]

約数ペア:

[(1, 128573380), (2, 64286690), (4, 32143345), (5, 25714676), (10, 12857338), (13, 9890260), (17, 7563140), (19, 6767020), (20, 6428669), (26, 4945130), (34, 3781570), (38, 3383510), (52, 2472565), (65, 1978052), (68, 1890785), (76, 1691755), (85, 1512628), (95, 1353404), (130, 989026), (170, 756314), (190, 676702), (221, 581780), (247, 520540), (260, 494513), (323, 398060), (340, 378157), (380, 338351), (442, 290890), (494, 260270), (646, 199030), (884, 145445), (988, 130135), (1105, 116356), (1235, 104108), (1292, 99515), (1531, 83980), (1615, 79612), (2210, 58178), (2470, 52054), (3062, 41990), (3230, 39806), (4199, 30620), (4420, 29089), (4940, 26027), (6124, 20995), (6460, 19903), (7655, 16796), (8398, 15310)]