1421200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:65

約数の個数: 120

約数和(自身を含む): 4151520

約数和(自身を除く): 2730320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 19, 20, 22, 25, 34, 38, 40, 44, 50, 55, 68, 76, 80, 85, 88, 95, 100, 110, 136, 152, 170, 176, 187, 190, 200, 209, 220, 272, 275, 304, 323, 340, 374, 380, 400, 418, 425, 440, 475, 550, 646, 680, 748, 760, 836, 850, 880, 935, 950, 1045, 1100, 1292, 1360, 1496, 1520, 1615, 1672, 1700, 1870, 1900, 2090, 2200, 2584, 2992, 3230, 3344, 3400, 3553, 3740, 3800, 4180, 4400, 4675, 5168, 5225, 6460, 6800, 7106, 7480, 7600, 8075, 8360, 9350, 10450, 12920, 14212, 14960, 16150, 16720, 17765, 18700, 20900, 25840, 28424, 32300, 35530, 37400, 41800, 56848, 64600, 71060, 74800, 83600, 88825, 129200, 142120, 177650, 284240, 355300, 710600, 1421200]

約数ペア:

[(1, 1421200), (2, 710600), (4, 355300), (5, 284240), (8, 177650), (10, 142120), (11, 129200), (16, 88825), (17, 83600), (19, 74800), (20, 71060), (22, 64600), (25, 56848), (34, 41800), (38, 37400), (40, 35530), (44, 32300), (50, 28424), (55, 25840), (68, 20900), (76, 18700), (80, 17765), (85, 16720), (88, 16150), (95, 14960), (100, 14212), (110, 12920), (136, 10450), (152, 9350), (170, 8360), (176, 8075), (187, 7600), (190, 7480), (200, 7106), (209, 6800), (220, 6460), (272, 5225), (275, 5168), (304, 4675), (323, 4400), (340, 4180), (374, 3800), (380, 3740), (400, 3553), (418, 3400), (425, 3344), (440, 3230), (475, 2992), (550, 2584), (646, 2200), (680, 2090), (748, 1900), (760, 1870), (836, 1700), (850, 1672), (880, 1615), (935, 1520), (950, 1496), (1045, 1360), (1100, 1292)]