20217420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6607}}^1$

素因数の和:6639

約数の個数: 72

約数和(自身を含む): 64943424

約数和(自身を除く): 44726004

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, 6607, 13214, 19821, 26428, 33035, 39642, 59463, 66070, 79284, 99105, 112319, 118926, 132140, 198210, 224638, 237852, 297315, 336957, 396420, 449276, 561595, 594630, 673914, 1010871, 1123190, 1189260, 1347828, 1684785, 2021742, 2246380, 3369570, 4043484, 5054355, 6739140, 10108710, 20217420]

約数ペア:

[(1, 20217420), (2, 10108710), (3, 6739140), (4, 5054355), (5, 4043484), (6, 3369570), (9, 2246380), (10, 2021742), (12, 1684785), (15, 1347828), (17, 1189260), (18, 1123190), (20, 1010871), (30, 673914), (34, 594630), (36, 561595), (45, 449276), (51, 396420), (60, 336957), (68, 297315), (85, 237852), (90, 224638), (102, 198210), (153, 132140), (170, 118926), (180, 112319), (204, 99105), (255, 79284), (306, 66070), (340, 59463), (510, 39642), (612, 33035), (765, 26428), (1020, 19821), (1530, 13214), (3060, 6607)]