78368000

素因数分解:

$2^8\times 5^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 144

約数和(自身を含む): 204072960

約数和(自身を除く): 125704960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 79, 80, 100, 124, 125, 128, 155, 158, 160, 200, 248, 250, 256, 310, 316, 320, 395, 400, 496, 500, 620, 632, 640, 775, 790, 800, 992, 1000, 1240, 1264, 1280, 1550, 1580, 1600, 1975, 1984, 2000, 2449, 2480, 2528, 3100, 3160, 3200, 3875, 3950, 3968, 4000, 4898, 4960, 5056, 6200, 6320, 6400, 7750, 7900, 7936, 8000, 9796, 9875, 9920, 10112, 12245, 12400, 12640, 15500, 15800, 16000, 19592, 19750, 19840, 20224, 24490, 24800, 25280, 31000, 31600, 32000, 39184, 39500, 39680, 48980, 49600, 50560, 61225, 62000, 63200, 78368, 79000, 97960, 99200, 101120, 122450, 124000, 126400, 156736, 158000, 195920, 198400, 244900, 248000, 252800, 306125, 313472, 316000, 391840, 489800, 496000, 505600, 612250, 626944, 632000, 783680, 979600, 992000, 1224500, 1264000, 1567360, 1959200, 2449000, 2528000, 3134720, 3918400, 4898000, 7836800, 9796000, 15673600, 19592000, 39184000, 78368000]

約数ペア:

[(1, 78368000), (2, 39184000), (4, 19592000), (5, 15673600), (8, 9796000), (10, 7836800), (16, 4898000), (20, 3918400), (25, 3134720), (31, 2528000), (32, 2449000), (40, 1959200), (50, 1567360), (62, 1264000), (64, 1224500), (79, 992000), (80, 979600), (100, 783680), (124, 632000), (125, 626944), (128, 612250), (155, 505600), (158, 496000), (160, 489800), (200, 391840), (248, 316000), (250, 313472), (256, 306125), (310, 252800), (316, 248000), (320, 244900), (395, 198400), (400, 195920), (496, 158000), (500, 156736), (620, 126400), (632, 124000), (640, 122450), (775, 101120), (790, 99200), (800, 97960), (992, 79000), (1000, 78368), (1240, 63200), (1264, 62000), (1280, 61225), (1550, 50560), (1580, 49600), (1600, 48980), (1975, 39680), (1984, 39500), (2000, 39184), (2449, 32000), (2480, 31600), (2528, 31000), (3100, 25280), (3160, 24800), (3200, 24490), (3875, 20224), (3950, 19840), (3968, 19750), (4000, 19592), (4898, 16000), (4960, 15800), (5056, 15500), (6200, 12640), (6320, 12400), (6400, 12245), (7750, 10112), (7900, 9920), (7936, 9875), (8000, 9796)]