166397680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{523}}^1$

素因数の和:674

約数の個数: 80

約数和(自身を含む): 401161824

約数和(自身を除く): 234764144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 97, 164, 194, 205, 328, 388, 410, 485, 523, 656, 776, 820, 970, 1046, 1552, 1640, 1940, 2092, 2615, 3280, 3880, 3977, 4184, 5230, 7760, 7954, 8368, 10460, 15908, 19885, 20920, 21443, 31816, 39770, 41840, 42886, 50731, 63632, 79540, 85772, 101462, 107215, 159080, 171544, 202924, 214430, 253655, 318160, 343088, 405848, 428860, 507310, 811696, 857720, 1014620, 1715440, 2029240, 2079971, 4058480, 4159942, 8319884, 10399855, 16639768, 20799710, 33279536, 41599420, 83198840, 166397680]

約数ペア:

[(1, 166397680), (2, 83198840), (4, 41599420), (5, 33279536), (8, 20799710), (10, 16639768), (16, 10399855), (20, 8319884), (40, 4159942), (41, 4058480), (80, 2079971), (82, 2029240), (97, 1715440), (164, 1014620), (194, 857720), (205, 811696), (328, 507310), (388, 428860), (410, 405848), (485, 343088), (523, 318160), (656, 253655), (776, 214430), (820, 202924), (970, 171544), (1046, 159080), (1552, 107215), (1640, 101462), (1940, 85772), (2092, 79540), (2615, 63632), (3280, 50731), (3880, 42886), (3977, 41840), (4184, 39770), (5230, 31816), (7760, 21443), (7954, 20920), (8368, 19885), (10460, 15908)]