20842680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{601}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 66533040

約数和(自身を除く): 45690360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 289, 340, 408, 510, 578, 601, 680, 867, 1020, 1156, 1202, 1445, 1734, 1803, 2040, 2312, 2404, 2890, 3005, 3468, 3606, 4335, 4808, 5780, 6010, 6936, 7212, 8670, 9015, 10217, 11560, 12020, 14424, 17340, 18030, 20434, 24040, 30651, 34680, 36060, 40868, 51085, 61302, 72120, 81736, 102170, 122604, 153255, 173689, 204340, 245208, 306510, 347378, 408680, 521067, 613020, 694756, 868445, 1042134, 1226040, 1389512, 1736890, 2084268, 2605335, 3473780, 4168536, 5210670, 6947560, 10421340, 20842680]

約数ペア:

[(1, 20842680), (2, 10421340), (3, 6947560), (4, 5210670), (5, 4168536), (6, 3473780), (8, 2605335), (10, 2084268), (12, 1736890), (15, 1389512), (17, 1226040), (20, 1042134), (24, 868445), (30, 694756), (34, 613020), (40, 521067), (51, 408680), (60, 347378), (68, 306510), (85, 245208), (102, 204340), (120, 173689), (136, 153255), (170, 122604), (204, 102170), (255, 81736), (289, 72120), (340, 61302), (408, 51085), (510, 40868), (578, 36060), (601, 34680), (680, 30651), (867, 24040), (1020, 20434), (1156, 18030), (1202, 17340), (1445, 14424), (1734, 12020), (1803, 11560), (2040, 10217), (2312, 9015), (2404, 8670), (2890, 7212), (3005, 6936), (3468, 6010), (3606, 5780), (4335, 4808)]