18945131220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{9161}}^1\times {\mathrm{11489}}^1$

素因数の和:20665

約数の個数: 72

約数和(自身を含む): 57478173480

約数和(自身を除く): 38533042260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 9161, 11489, 18322, 22978, 27483, 34467, 36644, 45805, 45956, 54966, 57445, 68934, 82449, 91610, 103401, 109932, 114890, 137415, 137868, 164898, 172335, 183220, 206802, 229780, 274830, 329796, 344670, 412245, 413604, 517005, 549660, 689340, 824490, 1034010, 1648980, 2068020, 105250729, 210501458, 315752187, 421002916, 526253645, 631504374, 947256561, 1052507290, 1263008748, 1578760935, 1894513122, 2105014580, 3157521870, 3789026244, 4736282805, 6315043740, 9472565610, 18945131220]

約数ペア:

[(1, 18945131220), (2, 9472565610), (3, 6315043740), (4, 4736282805), (5, 3789026244), (6, 3157521870), (9, 2105014580), (10, 1894513122), (12, 1578760935), (15, 1263008748), (18, 1052507290), (20, 947256561), (30, 631504374), (36, 526253645), (45, 421002916), (60, 315752187), (90, 210501458), (180, 105250729), (9161, 2068020), (11489, 1648980), (18322, 1034010), (22978, 824490), (27483, 689340), (34467, 549660), (36644, 517005), (45805, 413604), (45956, 412245), (54966, 344670), (57445, 329796), (68934, 274830), (82449, 229780), (91610, 206802), (103401, 183220), (109932, 172335), (114890, 164898), (137415, 137868)]