18970980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2657}}^1$

素因数の和:2693

約数の個数: 96

約数和(自身を含む): 64302336

約数和(自身を除く): 45331356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 2657, 3570, 5314, 7140, 7971, 10628, 13285, 15942, 18599, 26570, 31884, 37198, 39855, 45169, 53140, 55797, 74396, 79710, 90338, 92995, 111594, 135507, 159420, 180676, 185990, 223188, 225845, 271014, 278985, 316183, 371980, 451690, 542028, 557970, 632366, 677535, 903380, 948549, 1115940, 1264732, 1355070, 1580915, 1897098, 2710140, 3161830, 3794196, 4742745, 6323660, 9485490, 18970980]

約数ペア:

[(1, 18970980), (2, 9485490), (3, 6323660), (4, 4742745), (5, 3794196), (6, 3161830), (7, 2710140), (10, 1897098), (12, 1580915), (14, 1355070), (15, 1264732), (17, 1115940), (20, 948549), (21, 903380), (28, 677535), (30, 632366), (34, 557970), (35, 542028), (42, 451690), (51, 371980), (60, 316183), (68, 278985), (70, 271014), (84, 225845), (85, 223188), (102, 185990), (105, 180676), (119, 159420), (140, 135507), (170, 111594), (204, 92995), (210, 90338), (238, 79710), (255, 74396), (340, 55797), (357, 53140), (420, 45169), (476, 39855), (510, 37198), (595, 31884), (714, 26570), (1020, 18599), (1190, 15942), (1428, 13285), (1785, 10628), (2380, 7971), (2657, 7140), (3570, 5314)]