18447787520

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{232457}}^1$

素因数の和:232511

約数の個数: 80

約数和(自身を含む): 45658470528

約数和(自身を除く): 27210683008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 9920, 15872, 19840, 39680, 79360, 232457, 464914, 929828, 1162285, 1859656, 2324570, 3719312, 4649140, 7206167, 7438624, 9298280, 14412334, 14877248, 18596560, 28824668, 29754496, 36030835, 37193120, 57649336, 59508992, 72061670, 74386240, 115298672, 119017984, 144123340, 148772480, 230597344, 288246680, 297544960, 461194688, 576493360, 595089920, 922389376, 1152986720, 1844778752, 2305973440, 3689557504, 4611946880, 9223893760, 18447787520]

約数ペア:

[(1, 18447787520), (2, 9223893760), (4, 4611946880), (5, 3689557504), (8, 2305973440), (10, 1844778752), (16, 1152986720), (20, 922389376), (31, 595089920), (32, 576493360), (40, 461194688), (62, 297544960), (64, 288246680), (80, 230597344), (124, 148772480), (128, 144123340), (155, 119017984), (160, 115298672), (248, 74386240), (256, 72061670), (310, 59508992), (320, 57649336), (496, 37193120), (512, 36030835), (620, 29754496), (640, 28824668), (992, 18596560), (1240, 14877248), (1280, 14412334), (1984, 9298280), (2480, 7438624), (2560, 7206167), (3968, 4649140), (4960, 3719312), (7936, 2324570), (9920, 1859656), (15872, 1162285), (19840, 929828), (39680, 464914), (79360, 232457)]