391834720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2113}}^1$

素因数の和:2208

約数の個数: 96

約数和(自身を含む): 990874080

約数和(自身を除く): 599039360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 61, 76, 80, 95, 122, 152, 160, 190, 244, 304, 305, 380, 488, 608, 610, 760, 976, 1159, 1220, 1520, 1952, 2113, 2318, 2440, 3040, 4226, 4636, 4880, 5795, 8452, 9272, 9760, 10565, 11590, 16904, 18544, 21130, 23180, 33808, 37088, 40147, 42260, 46360, 67616, 80294, 84520, 92720, 128893, 160588, 169040, 185440, 200735, 257786, 321176, 338080, 401470, 515572, 642352, 644465, 802940, 1031144, 1284704, 1288930, 1605880, 2062288, 2448967, 2577860, 3211760, 4124576, 4897934, 5155720, 6423520, 9795868, 10311440, 12244835, 19591736, 20622880, 24489670, 39183472, 48979340, 78366944, 97958680, 195917360, 391834720]

約数ペア:

[(1, 391834720), (2, 195917360), (4, 97958680), (5, 78366944), (8, 48979340), (10, 39183472), (16, 24489670), (19, 20622880), (20, 19591736), (32, 12244835), (38, 10311440), (40, 9795868), (61, 6423520), (76, 5155720), (80, 4897934), (95, 4124576), (122, 3211760), (152, 2577860), (160, 2448967), (190, 2062288), (244, 1605880), (304, 1288930), (305, 1284704), (380, 1031144), (488, 802940), (608, 644465), (610, 642352), (760, 515572), (976, 401470), (1159, 338080), (1220, 321176), (1520, 257786), (1952, 200735), (2113, 185440), (2318, 169040), (2440, 160588), (3040, 128893), (4226, 92720), (4636, 84520), (4880, 80294), (5795, 67616), (8452, 46360), (9272, 42260), (9760, 40147), (10565, 37088), (11590, 33808), (16904, 23180), (18544, 21130)]