81318480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1049}}^1$

素因数の和:1101

約数の個数: 160

約数和(自身を含む): 281232000

約数和(自身を除く): 199913520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 272, 285, 304, 323, 340, 380, 408, 456, 510, 570, 646, 680, 760, 816, 912, 969, 1020, 1049, 1140, 1292, 1360, 1520, 1615, 1938, 2040, 2098, 2280, 2584, 3147, 3230, 3876, 4080, 4196, 4560, 4845, 5168, 5245, 6294, 6460, 7752, 8392, 9690, 10490, 12588, 12920, 15504, 15735, 16784, 17833, 19380, 19931, 20980, 25176, 25840, 31470, 35666, 38760, 39862, 41960, 50352, 53499, 59793, 62940, 71332, 77520, 79724, 83920, 89165, 99655, 106998, 119586, 125880, 142664, 159448, 178330, 199310, 213996, 239172, 251760, 267495, 285328, 298965, 318896, 338827, 356660, 398620, 427992, 478344, 534990, 597930, 677654, 713320, 797240, 855984, 956688, 1016481, 1069980, 1195860, 1355308, 1426640, 1594480, 1694135, 2032962, 2139960, 2391720, 2710616, 3388270, 4065924, 4279920, 4783440, 5082405, 5421232, 6776540, 8131848, 10164810, 13553080, 16263696, 20329620, 27106160, 40659240, 81318480]

約数ペア:

[(1, 81318480), (2, 40659240), (3, 27106160), (4, 20329620), (5, 16263696), (6, 13553080), (8, 10164810), (10, 8131848), (12, 6776540), (15, 5421232), (16, 5082405), (17, 4783440), (19, 4279920), (20, 4065924), (24, 3388270), (30, 2710616), (34, 2391720), (38, 2139960), (40, 2032962), (48, 1694135), (51, 1594480), (57, 1426640), (60, 1355308), (68, 1195860), (76, 1069980), (80, 1016481), (85, 956688), (95, 855984), (102, 797240), (114, 713320), (120, 677654), (136, 597930), (152, 534990), (170, 478344), (190, 427992), (204, 398620), (228, 356660), (240, 338827), (255, 318896), (272, 298965), (285, 285328), (304, 267495), (323, 251760), (340, 239172), (380, 213996), (408, 199310), (456, 178330), (510, 159448), (570, 142664), (646, 125880), (680, 119586), (760, 106998), (816, 99655), (912, 89165), (969, 83920), (1020, 79724), (1049, 77520), (1140, 71332), (1292, 62940), (1360, 59793), (1520, 53499), (1615, 50352), (1938, 41960), (2040, 39862), (2098, 38760), (2280, 35666), (2584, 31470), (3147, 25840), (3230, 25176), (3876, 20980), (4080, 19931), (4196, 19380), (4560, 17833), (4845, 16784), (5168, 15735), (5245, 15504), (6294, 12920), (6460, 12588), (7752, 10490), (8392, 9690)]