13391920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 33881760

約数和(自身を除く): 20489840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 229, 272, 340, 344, 430, 458, 680, 688, 731, 860, 916, 1145, 1360, 1462, 1720, 1832, 2290, 2924, 3440, 3655, 3664, 3893, 4580, 5848, 7310, 7786, 9160, 9847, 11696, 14620, 15572, 18320, 19465, 19694, 29240, 31144, 38930, 39388, 49235, 58480, 62288, 77860, 78776, 98470, 155720, 157552, 167399, 196940, 311440, 334798, 393880, 669596, 787760, 836995, 1339192, 1673990, 2678384, 3347980, 6695960, 13391920]

約数ペア:

[(1, 13391920), (2, 6695960), (4, 3347980), (5, 2678384), (8, 1673990), (10, 1339192), (16, 836995), (17, 787760), (20, 669596), (34, 393880), (40, 334798), (43, 311440), (68, 196940), (80, 167399), (85, 157552), (86, 155720), (136, 98470), (170, 78776), (172, 77860), (215, 62288), (229, 58480), (272, 49235), (340, 39388), (344, 38930), (430, 31144), (458, 29240), (680, 19694), (688, 19465), (731, 18320), (860, 15572), (916, 14620), (1145, 11696), (1360, 9847), (1462, 9160), (1720, 7786), (1832, 7310), (2290, 5848), (2924, 4580), (3440, 3893), (3655, 3664)]