80309020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:343

約数の個数: 96

約数和(自身を含む): 197588160

約数和(自身を除く): 117279140

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 109, 110, 170, 187, 197, 218, 220, 340, 374, 394, 436, 545, 748, 788, 935, 985, 1090, 1199, 1853, 1870, 1970, 2167, 2180, 2398, 3349, 3706, 3740, 3940, 4334, 4796, 5995, 6698, 7412, 8668, 9265, 10835, 11990, 13396, 16745, 18530, 20383, 21473, 21670, 23980, 33490, 36839, 37060, 40766, 42946, 43340, 66980, 73678, 81532, 85892, 101915, 107365, 147356, 184195, 203830, 214730, 236203, 365041, 368390, 407660, 429460, 472406, 730082, 736780, 944812, 1181015, 1460164, 1825205, 2362030, 3650410, 4015451, 4724060, 7300820, 8030902, 16061804, 20077255, 40154510, 80309020]

約数ペア:

[(1, 80309020), (2, 40154510), (4, 20077255), (5, 16061804), (10, 8030902), (11, 7300820), (17, 4724060), (20, 4015451), (22, 3650410), (34, 2362030), (44, 1825205), (55, 1460164), (68, 1181015), (85, 944812), (109, 736780), (110, 730082), (170, 472406), (187, 429460), (197, 407660), (218, 368390), (220, 365041), (340, 236203), (374, 214730), (394, 203830), (436, 184195), (545, 147356), (748, 107365), (788, 101915), (935, 85892), (985, 81532), (1090, 73678), (1199, 66980), (1853, 43340), (1870, 42946), (1970, 40766), (2167, 37060), (2180, 36839), (2398, 33490), (3349, 23980), (3706, 21670), (3740, 21473), (3940, 20383), (4334, 18530), (4796, 16745), (5995, 13396), (6698, 11990), (7412, 10835), (8668, 9265)]