328352000

素因数分解:

$2^8\times 5^3\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:393

約数の個数: 144

約数和(自身を含む): 846902784

約数和(自身を除く): 518550784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 200, 248, 250, 256, 310, 320, 331, 400, 496, 500, 620, 640, 662, 775, 800, 992, 1000, 1240, 1280, 1324, 1550, 1600, 1655, 1984, 2000, 2480, 2648, 3100, 3200, 3310, 3875, 3968, 4000, 4960, 5296, 6200, 6400, 6620, 7750, 7936, 8000, 8275, 9920, 10261, 10592, 12400, 13240, 15500, 16000, 16550, 19840, 20522, 21184, 24800, 26480, 31000, 32000, 33100, 39680, 41044, 41375, 42368, 49600, 51305, 52960, 62000, 66200, 82088, 82750, 84736, 99200, 102610, 105920, 124000, 132400, 164176, 165500, 198400, 205220, 211840, 248000, 256525, 264800, 328352, 331000, 410440, 423680, 496000, 513050, 529600, 656704, 662000, 820880, 992000, 1026100, 1059200, 1282625, 1313408, 1324000, 1641760, 2052200, 2118400, 2565250, 2626816, 2648000, 3283520, 4104400, 5130500, 5296000, 6567040, 8208800, 10261000, 10592000, 13134080, 16417600, 20522000, 32835200, 41044000, 65670400, 82088000, 164176000, 328352000]

約数ペア:

[(1, 328352000), (2, 164176000), (4, 82088000), (5, 65670400), (8, 41044000), (10, 32835200), (16, 20522000), (20, 16417600), (25, 13134080), (31, 10592000), (32, 10261000), (40, 8208800), (50, 6567040), (62, 5296000), (64, 5130500), (80, 4104400), (100, 3283520), (124, 2648000), (125, 2626816), (128, 2565250), (155, 2118400), (160, 2052200), (200, 1641760), (248, 1324000), (250, 1313408), (256, 1282625), (310, 1059200), (320, 1026100), (331, 992000), (400, 820880), (496, 662000), (500, 656704), (620, 529600), (640, 513050), (662, 496000), (775, 423680), (800, 410440), (992, 331000), (1000, 328352), (1240, 264800), (1280, 256525), (1324, 248000), (1550, 211840), (1600, 205220), (1655, 198400), (1984, 165500), (2000, 164176), (2480, 132400), (2648, 124000), (3100, 105920), (3200, 102610), (3310, 99200), (3875, 84736), (3968, 82750), (4000, 82088), (4960, 66200), (5296, 62000), (6200, 52960), (6400, 51305), (6620, 49600), (7750, 42368), (7936, 41375), (8000, 41044), (8275, 39680), (9920, 33100), (10261, 32000), (10592, 31000), (12400, 26480), (13240, 24800), (15500, 21184), (16000, 20522), (16550, 19840)]