12538880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:135

約数の個数: 88

約数和(自身を含む): 31441920

約数和(自身を除く): 18903040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 79, 80, 124, 128, 155, 158, 160, 248, 256, 310, 316, 320, 395, 496, 512, 620, 632, 640, 790, 992, 1024, 1240, 1264, 1280, 1580, 1984, 2449, 2480, 2528, 2560, 3160, 3968, 4898, 4960, 5056, 5120, 6320, 7936, 9796, 9920, 10112, 12245, 12640, 15872, 19592, 19840, 20224, 24490, 25280, 31744, 39184, 39680, 40448, 48980, 50560, 78368, 79360, 80896, 97960, 101120, 156736, 158720, 195920, 202240, 313472, 391840, 404480, 626944, 783680, 1253888, 1567360, 2507776, 3134720, 6269440, 12538880]

約数ペア:

[(1, 12538880), (2, 6269440), (4, 3134720), (5, 2507776), (8, 1567360), (10, 1253888), (16, 783680), (20, 626944), (31, 404480), (32, 391840), (40, 313472), (62, 202240), (64, 195920), (79, 158720), (80, 156736), (124, 101120), (128, 97960), (155, 80896), (158, 79360), (160, 78368), (248, 50560), (256, 48980), (310, 40448), (316, 39680), (320, 39184), (395, 31744), (496, 25280), (512, 24490), (620, 20224), (632, 19840), (640, 19592), (790, 15872), (992, 12640), (1024, 12245), (1240, 10112), (1264, 9920), (1280, 9796), (1580, 7936), (1984, 6320), (2449, 5120), (2480, 5056), (2528, 4960), (2560, 4898), (3160, 3968)]