31347200

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 120

約数和(自身を含む): 81185280

約数和(自身を除く): 49838080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 79, 80, 100, 124, 128, 155, 158, 160, 200, 248, 256, 310, 316, 320, 395, 400, 496, 512, 620, 632, 640, 775, 790, 800, 992, 1240, 1264, 1280, 1550, 1580, 1600, 1975, 1984, 2449, 2480, 2528, 2560, 3100, 3160, 3200, 3950, 3968, 4898, 4960, 5056, 6200, 6320, 6400, 7900, 7936, 9796, 9920, 10112, 12245, 12400, 12640, 12800, 15800, 15872, 19592, 19840, 20224, 24490, 24800, 25280, 31600, 39184, 39680, 40448, 48980, 49600, 50560, 61225, 63200, 78368, 79360, 97960, 99200, 101120, 122450, 126400, 156736, 195920, 198400, 202240, 244900, 252800, 313472, 391840, 396800, 489800, 505600, 626944, 783680, 979600, 1011200, 1253888, 1567360, 1959200, 3134720, 3918400, 6269440, 7836800, 15673600, 31347200]

約数ペア:

[(1, 31347200), (2, 15673600), (4, 7836800), (5, 6269440), (8, 3918400), (10, 3134720), (16, 1959200), (20, 1567360), (25, 1253888), (31, 1011200), (32, 979600), (40, 783680), (50, 626944), (62, 505600), (64, 489800), (79, 396800), (80, 391840), (100, 313472), (124, 252800), (128, 244900), (155, 202240), (158, 198400), (160, 195920), (200, 156736), (248, 126400), (256, 122450), (310, 101120), (316, 99200), (320, 97960), (395, 79360), (400, 78368), (496, 63200), (512, 61225), (620, 50560), (632, 49600), (640, 48980), (775, 40448), (790, 39680), (800, 39184), (992, 31600), (1240, 25280), (1264, 24800), (1280, 24490), (1550, 20224), (1580, 19840), (1600, 19592), (1975, 15872), (1984, 15800), (2449, 12800), (2480, 12640), (2528, 12400), (2560, 12245), (3100, 10112), (3160, 9920), (3200, 9796), (3950, 7936), (3968, 7900), (4898, 6400), (4960, 6320), (5056, 6200)]