18780240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4603}}^1$

素因数の和:4636

約数の個数: 80

約数和(自身を含む): 61656768

約数和(自身を除く): 42876528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 4603, 9206, 13809, 18412, 23015, 27618, 36824, 46030, 55236, 69045, 73648, 78251, 92060, 110472, 138090, 156502, 184120, 220944, 234753, 276180, 313004, 368240, 391255, 469506, 552360, 626008, 782510, 939012, 1104720, 1173765, 1252016, 1565020, 1878024, 2347530, 3130040, 3756048, 4695060, 6260080, 9390120, 18780240]

約数ペア:

[(1, 18780240), (2, 9390120), (3, 6260080), (4, 4695060), (5, 3756048), (6, 3130040), (8, 2347530), (10, 1878024), (12, 1565020), (15, 1252016), (16, 1173765), (17, 1104720), (20, 939012), (24, 782510), (30, 626008), (34, 552360), (40, 469506), (48, 391255), (51, 368240), (60, 313004), (68, 276180), (80, 234753), (85, 220944), (102, 184120), (120, 156502), (136, 138090), (170, 110472), (204, 92060), (240, 78251), (255, 73648), (272, 69045), (340, 55236), (408, 46030), (510, 36824), (680, 27618), (816, 23015), (1020, 18412), (1360, 13809), (2040, 9206), (4080, 4603)]