16921018880

素因数分解:

$2^9\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{3989}}^1$

素因数の和:5669

約数の個数: 80

約数和(自身を含む): 40605447960

約数和(自身を除く): 23684429080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 1657, 2560, 3314, 3989, 6628, 7978, 8285, 13256, 15956, 16570, 19945, 26512, 31912, 33140, 39890, 53024, 63824, 66280, 79780, 106048, 127648, 132560, 159560, 212096, 255296, 265120, 319120, 424192, 510592, 530240, 638240, 848384, 1021184, 1060480, 1276480, 2042368, 2120960, 2552960, 4241920, 5105920, 6609773, 10211840, 13219546, 26439092, 33048865, 52878184, 66097730, 105756368, 132195460, 211512736, 264390920, 423025472, 528781840, 846050944, 1057563680, 1692101888, 2115127360, 3384203776, 4230254720, 8460509440, 16921018880]

約数ペア:

[(1, 16921018880), (2, 8460509440), (4, 4230254720), (5, 3384203776), (8, 2115127360), (10, 1692101888), (16, 1057563680), (20, 846050944), (32, 528781840), (40, 423025472), (64, 264390920), (80, 211512736), (128, 132195460), (160, 105756368), (256, 66097730), (320, 52878184), (512, 33048865), (640, 26439092), (1280, 13219546), (1657, 10211840), (2560, 6609773), (3314, 5105920), (3989, 4241920), (6628, 2552960), (7978, 2120960), (8285, 2042368), (13256, 1276480), (15956, 1060480), (16570, 1021184), (19945, 848384), (26512, 638240), (31912, 530240), (33140, 510592), (39890, 424192), (53024, 319120), (63824, 265120), (66280, 255296), (79780, 212096), (106048, 159560), (127648, 132560)]