12315281920

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{209159}}^1$

素因数の和:209205

約数の個数: 80

約数和(自身を含む): 30811777920

約数和(自身を除く): 18496496000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 512, 640, 736, 920, 1280, 1472, 1840, 2560, 2944, 3680, 5888, 7360, 11776, 14720, 29440, 58880, 209159, 418318, 836636, 1045795, 1673272, 2091590, 3346544, 4183180, 4810657, 6693088, 8366360, 9621314, 13386176, 16732720, 19242628, 24053285, 26772352, 33465440, 38485256, 48106570, 53544704, 66930880, 76970512, 96213140, 107089408, 133861760, 153941024, 192426280, 267723520, 307882048, 384852560, 535447040, 615764096, 769705120, 1231528192, 1539410240, 2463056384, 3078820480, 6157640960, 12315281920]

約数ペア:

[(1, 12315281920), (2, 6157640960), (4, 3078820480), (5, 2463056384), (8, 1539410240), (10, 1231528192), (16, 769705120), (20, 615764096), (23, 535447040), (32, 384852560), (40, 307882048), (46, 267723520), (64, 192426280), (80, 153941024), (92, 133861760), (115, 107089408), (128, 96213140), (160, 76970512), (184, 66930880), (230, 53544704), (256, 48106570), (320, 38485256), (368, 33465440), (460, 26772352), (512, 24053285), (640, 19242628), (736, 16732720), (920, 13386176), (1280, 9621314), (1472, 8366360), (1840, 6693088), (2560, 4810657), (2944, 4183180), (3680, 3346544), (5888, 2091590), (7360, 1673272), (11776, 1045795), (14720, 836636), (29440, 418318), (58880, 209159)]