77886880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:470

約数の個数: 96

約数和(自身を含む): 195084288

約数和(自身を除く): 117197408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 80, 82, 124, 155, 160, 164, 205, 248, 310, 328, 383, 410, 496, 620, 656, 766, 820, 992, 1240, 1271, 1312, 1532, 1640, 1915, 2480, 2542, 3064, 3280, 3830, 4960, 5084, 6128, 6355, 6560, 7660, 10168, 11873, 12256, 12710, 15320, 15703, 20336, 23746, 25420, 30640, 31406, 40672, 47492, 50840, 59365, 61280, 62812, 78515, 94984, 101680, 118730, 125624, 157030, 189968, 203360, 237460, 251248, 314060, 379936, 474920, 486793, 502496, 628120, 949840, 973586, 1256240, 1899680, 1947172, 2433965, 2512480, 3894344, 4867930, 7788688, 9735860, 15577376, 19471720, 38943440, 77886880]

約数ペア:

[(1, 77886880), (2, 38943440), (4, 19471720), (5, 15577376), (8, 9735860), (10, 7788688), (16, 4867930), (20, 3894344), (31, 2512480), (32, 2433965), (40, 1947172), (41, 1899680), (62, 1256240), (80, 973586), (82, 949840), (124, 628120), (155, 502496), (160, 486793), (164, 474920), (205, 379936), (248, 314060), (310, 251248), (328, 237460), (383, 203360), (410, 189968), (496, 157030), (620, 125624), (656, 118730), (766, 101680), (820, 94984), (992, 78515), (1240, 62812), (1271, 61280), (1312, 59365), (1532, 50840), (1640, 47492), (1915, 40672), (2480, 31406), (2542, 30640), (3064, 25420), (3280, 23746), (3830, 20336), (4960, 15703), (5084, 15320), (6128, 12710), (6355, 12256), (6560, 11873), (7660, 10168)]