17964340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{659}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 21952460

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 116, 145, 188, 235, 290, 470, 580, 659, 940, 1318, 1363, 2636, 2726, 3295, 5452, 6590, 6815, 13180, 13630, 19111, 27260, 30973, 38222, 61946, 76444, 95555, 123892, 154865, 191110, 309730, 382220, 619460, 898217, 1796434, 3592868, 4491085, 8982170, 17964340]

約数ペア:

[(1, 17964340), (2, 8982170), (4, 4491085), (5, 3592868), (10, 1796434), (20, 898217), (29, 619460), (47, 382220), (58, 309730), (94, 191110), (116, 154865), (145, 123892), (188, 95555), (235, 76444), (290, 61946), (470, 38222), (580, 30973), (659, 27260), (940, 19111), (1318, 13630), (1363, 13180), (2636, 6815), (2726, 6590), (3295, 5452)]