248458420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 646265088

約数和(自身を除く): 397806668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 73, 92, 98, 115, 140, 146, 151, 161, 196, 230, 245, 292, 302, 322, 365, 460, 490, 511, 604, 644, 730, 755, 805, 980, 1022, 1057, 1127, 1460, 1510, 1610, 1679, 2044, 2114, 2254, 2555, 3020, 3220, 3358, 3473, 3577, 4228, 4508, 5110, 5285, 5635, 6716, 6946, 7154, 7399, 8395, 10220, 10570, 11023, 11270, 11753, 13892, 14308, 14798, 16790, 17365, 17885, 21140, 22046, 22540, 23506, 24311, 29596, 33580, 34730, 35770, 36995, 44092, 47012, 48622, 55115, 58765, 69460, 71540, 73990, 77161, 82271, 97244, 110230, 117530, 121555, 147980, 154322, 164542, 170177, 220460, 235060, 243110, 253529, 308644, 329084, 340354, 385805, 411355, 486220, 507058, 540127, 680708, 771610, 822710, 850885, 1014116, 1080254, 1267645, 1543220, 1645420, 1701770, 1774703, 2160508, 2535290, 2700635, 3403540, 3549406, 5070580, 5401270, 7098812, 8873515, 10802540, 12422921, 17747030, 24845842, 35494060, 49691684, 62114605, 124229210, 248458420]

約数ペア:

[(1, 248458420), (2, 124229210), (4, 62114605), (5, 49691684), (7, 35494060), (10, 24845842), (14, 17747030), (20, 12422921), (23, 10802540), (28, 8873515), (35, 7098812), (46, 5401270), (49, 5070580), (70, 3549406), (73, 3403540), (92, 2700635), (98, 2535290), (115, 2160508), (140, 1774703), (146, 1701770), (151, 1645420), (161, 1543220), (196, 1267645), (230, 1080254), (245, 1014116), (292, 850885), (302, 822710), (322, 771610), (365, 680708), (460, 540127), (490, 507058), (511, 486220), (604, 411355), (644, 385805), (730, 340354), (755, 329084), (805, 308644), (980, 253529), (1022, 243110), (1057, 235060), (1127, 220460), (1460, 170177), (1510, 164542), (1610, 154322), (1679, 147980), (2044, 121555), (2114, 117530), (2254, 110230), (2555, 97244), (3020, 82271), (3220, 77161), (3358, 73990), (3473, 71540), (3577, 69460), (4228, 58765), (4508, 55115), (5110, 48622), (5285, 47012), (5635, 44092), (6716, 36995), (6946, 35770), (7154, 34730), (7399, 33580), (8395, 29596), (10220, 24311), (10570, 23506), (11023, 22540), (11270, 22046), (11753, 21140), (13892, 17885), (14308, 17365), (14798, 16790)]