8117009920

素因数分解:

$2^9\times 5^1\times {\mathrm{401}}^1\times {\mathrm{7907}}^1$

素因数の和:8331

約数の個数: 80

約数和(自身を含む): 19512800208

約数和(自身を除く): 11395790288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 401, 512, 640, 802, 1280, 1604, 2005, 2560, 3208, 4010, 6416, 7907, 8020, 12832, 15814, 16040, 25664, 31628, 32080, 39535, 51328, 63256, 64160, 79070, 102656, 126512, 128320, 158140, 205312, 253024, 256640, 316280, 506048, 513280, 632560, 1012096, 1026560, 1265120, 2024192, 2530240, 3170707, 4048384, 5060480, 6341414, 10120960, 12682828, 15853535, 20241920, 25365656, 31707070, 50731312, 63414140, 101462624, 126828280, 202925248, 253656560, 405850496, 507313120, 811700992, 1014626240, 1623401984, 2029252480, 4058504960, 8117009920]

約数ペア:

[(1, 8117009920), (2, 4058504960), (4, 2029252480), (5, 1623401984), (8, 1014626240), (10, 811700992), (16, 507313120), (20, 405850496), (32, 253656560), (40, 202925248), (64, 126828280), (80, 101462624), (128, 63414140), (160, 50731312), (256, 31707070), (320, 25365656), (401, 20241920), (512, 15853535), (640, 12682828), (802, 10120960), (1280, 6341414), (1604, 5060480), (2005, 4048384), (2560, 3170707), (3208, 2530240), (4010, 2024192), (6416, 1265120), (7907, 1026560), (8020, 1012096), (12832, 632560), (15814, 513280), (16040, 506048), (25664, 316280), (31628, 256640), (32080, 253024), (39535, 205312), (51328, 158140), (63256, 128320), (64160, 126512), (79070, 102656)]