316809040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{811}}^1$

素因数の和:1100

約数の個数: 80

約数和(自身を含む): 779325120

約数和(自身を除く): 462516080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 257, 304, 380, 514, 760, 811, 1028, 1285, 1520, 1622, 2056, 2570, 3244, 4055, 4112, 4883, 5140, 6488, 8110, 9766, 10280, 12976, 15409, 16220, 19532, 20560, 24415, 30818, 32440, 39064, 48830, 61636, 64880, 77045, 78128, 97660, 123272, 154090, 195320, 208427, 246544, 308180, 390640, 416854, 616360, 833708, 1042135, 1232720, 1667416, 2084270, 3334832, 3960113, 4168540, 7920226, 8337080, 15840452, 16674160, 19800565, 31680904, 39601130, 63361808, 79202260, 158404520, 316809040]

約数ペア:

[(1, 316809040), (2, 158404520), (4, 79202260), (5, 63361808), (8, 39601130), (10, 31680904), (16, 19800565), (19, 16674160), (20, 15840452), (38, 8337080), (40, 7920226), (76, 4168540), (80, 3960113), (95, 3334832), (152, 2084270), (190, 1667416), (257, 1232720), (304, 1042135), (380, 833708), (514, 616360), (760, 416854), (811, 390640), (1028, 308180), (1285, 246544), (1520, 208427), (1622, 195320), (2056, 154090), (2570, 123272), (3244, 97660), (4055, 78128), (4112, 77045), (4883, 64880), (5140, 61636), (6488, 48830), (8110, 39064), (9766, 32440), (10280, 30818), (12976, 24415), (15409, 20560), (16220, 19532)]