4509440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 11675328

約数和(自身を除く): 7165888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 271, 320, 416, 520, 542, 640, 832, 1040, 1084, 1280, 1355, 1664, 2080, 2168, 2710, 3328, 3523, 4160, 4336, 5420, 7046, 8320, 8672, 10840, 14092, 16640, 17344, 17615, 21680, 28184, 34688, 35230, 43360, 56368, 69376, 70460, 86720, 112736, 140920, 173440, 225472, 281840, 346880, 450944, 563680, 901888, 1127360, 2254720, 4509440]

約数ペア:

[(1, 4509440), (2, 2254720), (4, 1127360), (5, 901888), (8, 563680), (10, 450944), (13, 346880), (16, 281840), (20, 225472), (26, 173440), (32, 140920), (40, 112736), (52, 86720), (64, 70460), (65, 69376), (80, 56368), (104, 43360), (128, 35230), (130, 34688), (160, 28184), (208, 21680), (256, 17615), (260, 17344), (271, 16640), (320, 14092), (416, 10840), (520, 8672), (542, 8320), (640, 7046), (832, 5420), (1040, 4336), (1084, 4160), (1280, 3523), (1355, 3328), (1664, 2710), (2080, 2168)]