20125620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6577}}^1$

素因数の和:6609

約数の個数: 72

約数和(自身を含む): 64648584

約数和(自身を除く): 44522964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6577, 13154, 19731, 26308, 32885, 39462, 59193, 65770, 78924, 98655, 111809, 118386, 131540, 197310, 223618, 236772, 295965, 335427, 394620, 447236, 559045, 591930, 670854, 1006281, 1118090, 1183860, 1341708, 1677135, 2012562, 2236180, 3354270, 4025124, 5031405, 6708540, 10062810, 20125620]

約数ペア:

[(1, 20125620), (2, 10062810), (3, 6708540), (4, 5031405), (5, 4025124), (6, 3354270), (9, 2236180), (10, 2012562), (12, 1677135), (15, 1341708), (17, 1183860), (18, 1118090), (20, 1006281), (30, 670854), (34, 591930), (36, 559045), (45, 447236), (51, 394620), (60, 335427), (68, 295965), (85, 236772), (90, 223618), (102, 197310), (153, 131540), (170, 118386), (180, 111809), (204, 98655), (255, 78924), (306, 65770), (340, 59193), (510, 39462), (612, 32885), (765, 26308), (1020, 19731), (1530, 13154), (3060, 6577)]