81324880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11171}}^1$

素因数の和:11204

約数の個数: 80

約数和(自身を含む): 232735104

約数和(自身を除く): 151410224

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 11171, 22342, 44684, 55855, 78197, 89368, 111710, 145223, 156394, 178736, 223420, 290446, 312788, 390985, 446840, 580892, 625576, 726115, 781970, 893680, 1016561, 1161784, 1251152, 1452230, 1563940, 2033122, 2323568, 2904460, 3127880, 4066244, 5082805, 5808920, 6255760, 8132488, 10165610, 11617840, 16264976, 20331220, 40662440, 81324880]

約数ペア:

[(1, 81324880), (2, 40662440), (4, 20331220), (5, 16264976), (7, 11617840), (8, 10165610), (10, 8132488), (13, 6255760), (14, 5808920), (16, 5082805), (20, 4066244), (26, 3127880), (28, 2904460), (35, 2323568), (40, 2033122), (52, 1563940), (56, 1452230), (65, 1251152), (70, 1161784), (80, 1016561), (91, 893680), (104, 781970), (112, 726115), (130, 625576), (140, 580892), (182, 446840), (208, 390985), (260, 312788), (280, 290446), (364, 223420), (455, 178736), (520, 156394), (560, 145223), (728, 111710), (910, 89368), (1040, 78197), (1456, 55855), (1820, 44684), (3640, 22342), (7280, 11171)]