31498740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:679

約数の個数: 192

約数和(自身を含む): 120798720

約数和(自身を除く): 89299980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 351, 364, 378, 390, 420, 455, 468, 540, 546, 585, 630, 641, 702, 756, 780, 819, 910, 945, 1092, 1170, 1260, 1282, 1365, 1404, 1638, 1755, 1820, 1890, 1923, 2340, 2457, 2564, 2730, 3205, 3276, 3510, 3780, 3846, 4095, 4487, 4914, 5460, 5769, 6410, 7020, 7692, 8190, 8333, 8974, 9615, 9828, 11538, 12285, 12820, 13461, 16380, 16666, 17307, 17948, 19230, 22435, 23076, 24570, 24999, 26922, 28845, 33332, 34614, 38460, 40383, 41665, 44870, 49140, 49998, 53844, 57690, 58331, 67305, 69228, 74997, 80766, 83330, 86535, 89740, 99996, 115380, 116662, 121149, 124995, 134610, 149994, 161532, 166660, 173070, 174993, 201915, 224991, 233324, 242298, 249990, 269220, 291655, 299988, 346140, 349986, 374985, 403830, 449982, 484596, 499980, 524979, 583310, 605745, 699972, 749970, 807660, 874965, 899964, 1049958, 1124955, 1166620, 1211490, 1499940, 1574937, 1749930, 2099916, 2249910, 2422980, 2624895, 3149874, 3499860, 4499820, 5249790, 6299748, 7874685, 10499580, 15749370, 31498740]

約数ペア:

[(1, 31498740), (2, 15749370), (3, 10499580), (4, 7874685), (5, 6299748), (6, 5249790), (7, 4499820), (9, 3499860), (10, 3149874), (12, 2624895), (13, 2422980), (14, 2249910), (15, 2099916), (18, 1749930), (20, 1574937), (21, 1499940), (26, 1211490), (27, 1166620), (28, 1124955), (30, 1049958), (35, 899964), (36, 874965), (39, 807660), (42, 749970), (45, 699972), (52, 605745), (54, 583310), (60, 524979), (63, 499980), (65, 484596), (70, 449982), (78, 403830), (84, 374985), (90, 349986), (91, 346140), (105, 299988), (108, 291655), (117, 269220), (126, 249990), (130, 242298), (135, 233324), (140, 224991), (156, 201915), (180, 174993), (182, 173070), (189, 166660), (195, 161532), (210, 149994), (234, 134610), (252, 124995), (260, 121149), (270, 116662), (273, 115380), (315, 99996), (351, 89740), (364, 86535), (378, 83330), (390, 80766), (420, 74997), (455, 69228), (468, 67305), (540, 58331), (546, 57690), (585, 53844), (630, 49998), (641, 49140), (702, 44870), (756, 41665), (780, 40383), (819, 38460), (910, 34614), (945, 33332), (1092, 28845), (1170, 26922), (1260, 24999), (1282, 24570), (1365, 23076), (1404, 22435), (1638, 19230), (1755, 17948), (1820, 17307), (1890, 16666), (1923, 16380), (2340, 13461), (2457, 12820), (2564, 12285), (2730, 11538), (3205, 9828), (3276, 9615), (3510, 8974), (3780, 8333), (3846, 8190), (4095, 7692), (4487, 7020), (4914, 6410), (5460, 5769)]