65518880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 144

約数和(自身を含む): 184347576

約数和(自身を除く): 118828696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 70, 80, 98, 112, 122, 137, 140, 160, 196, 224, 244, 245, 274, 280, 305, 392, 427, 488, 490, 548, 560, 610, 685, 784, 854, 959, 976, 980, 1096, 1120, 1220, 1370, 1568, 1708, 1918, 1952, 1960, 2135, 2192, 2440, 2740, 2989, 3416, 3836, 3920, 4270, 4384, 4795, 4880, 5480, 5978, 6713, 6832, 7672, 7840, 8357, 8540, 9590, 9760, 10960, 11956, 13426, 13664, 14945, 15344, 16714, 17080, 19180, 21920, 23912, 26852, 29890, 30688, 33428, 33565, 34160, 38360, 41785, 47824, 53704, 58499, 59780, 66856, 67130, 68320, 76720, 83570, 95648, 107408, 116998, 119560, 133712, 134260, 153440, 167140, 214816, 233996, 239120, 267424, 268520, 292495, 334280, 409493, 467992, 478240, 537040, 584990, 668560, 818986, 935984, 1074080, 1169980, 1337120, 1637972, 1871968, 2047465, 2339960, 3275944, 4094930, 4679920, 6551888, 8189860, 9359840, 13103776, 16379720, 32759440, 65518880]

約数ペア:

[(1, 65518880), (2, 32759440), (4, 16379720), (5, 13103776), (7, 9359840), (8, 8189860), (10, 6551888), (14, 4679920), (16, 4094930), (20, 3275944), (28, 2339960), (32, 2047465), (35, 1871968), (40, 1637972), (49, 1337120), (56, 1169980), (61, 1074080), (70, 935984), (80, 818986), (98, 668560), (112, 584990), (122, 537040), (137, 478240), (140, 467992), (160, 409493), (196, 334280), (224, 292495), (244, 268520), (245, 267424), (274, 239120), (280, 233996), (305, 214816), (392, 167140), (427, 153440), (488, 134260), (490, 133712), (548, 119560), (560, 116998), (610, 107408), (685, 95648), (784, 83570), (854, 76720), (959, 68320), (976, 67130), (980, 66856), (1096, 59780), (1120, 58499), (1220, 53704), (1370, 47824), (1568, 41785), (1708, 38360), (1918, 34160), (1952, 33565), (1960, 33428), (2135, 30688), (2192, 29890), (2440, 26852), (2740, 23912), (2989, 21920), (3416, 19180), (3836, 17080), (3920, 16714), (4270, 15344), (4384, 14945), (4795, 13664), (4880, 13426), (5480, 11956), (5978, 10960), (6713, 9760), (6832, 9590), (7672, 8540), (7840, 8357)]