19578730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^2$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 38959704

約数和(自身を除く): 19380974

約数列:

[1, 2, 5, 10, 17, 34, 41, 53, 82, 85, 106, 170, 205, 265, 410, 530, 697, 901, 1394, 1802, 2173, 2809, 3485, 4346, 4505, 5618, 6970, 9010, 10865, 14045, 21730, 28090, 36941, 47753, 73882, 95506, 115169, 184705, 230338, 238765, 369410, 477530, 575845, 1151690, 1957873, 3915746, 9789365, 19578730]

約数ペア:

[(1, 19578730), (2, 9789365), (5, 3915746), (10, 1957873), (17, 1151690), (34, 575845), (41, 477530), (53, 369410), (82, 238765), (85, 230338), (106, 184705), (170, 115169), (205, 95506), (265, 73882), (410, 47753), (530, 36941), (697, 28090), (901, 21730), (1394, 14045), (1802, 10865), (2173, 9010), (2809, 6970), (3485, 5618), (4346, 4505)]