19656777780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{191251}}^1$

素因数の和:191837

約数の個数: 72

約数和(自身を含む): 59730294624

約数和(自身を除く): 40073516844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 571, 1142, 1713, 2284, 2855, 3426, 5139, 5710, 6852, 8565, 10278, 11420, 17130, 20556, 25695, 34260, 51390, 102780, 191251, 382502, 573753, 765004, 956255, 1147506, 1721259, 1912510, 2295012, 2868765, 3442518, 3825020, 5737530, 6885036, 8606295, 11475060, 17212590, 34425180, 109204321, 218408642, 327612963, 436817284, 546021605, 655225926, 982838889, 1092043210, 1310451852, 1638064815, 1965677778, 2184086420, 3276129630, 3931355556, 4914194445, 6552259260, 9828388890, 19656777780]

約数ペア:

[(1, 19656777780), (2, 9828388890), (3, 6552259260), (4, 4914194445), (5, 3931355556), (6, 3276129630), (9, 2184086420), (10, 1965677778), (12, 1638064815), (15, 1310451852), (18, 1092043210), (20, 982838889), (30, 655225926), (36, 546021605), (45, 436817284), (60, 327612963), (90, 218408642), (180, 109204321), (571, 34425180), (1142, 17212590), (1713, 11475060), (2284, 8606295), (2855, 6885036), (3426, 5737530), (5139, 3825020), (5710, 3442518), (6852, 2868765), (8565, 2295012), (10278, 1912510), (11420, 1721259), (17130, 1147506), (20556, 956255), (25695, 765004), (34260, 573753), (51390, 382502), (102780, 191251)]