20872548

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 55560960

約数和(自身を除く): 34688412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 59, 62, 93, 118, 124, 177, 186, 236, 279, 317, 354, 372, 531, 558, 634, 708, 951, 1062, 1116, 1268, 1829, 1902, 2124, 2853, 3658, 3804, 5487, 5706, 7316, 9827, 10974, 11412, 16461, 18703, 19654, 21948, 29481, 32922, 37406, 39308, 56109, 58962, 65844, 74812, 88443, 112218, 117924, 168327, 176886, 224436, 336654, 353772, 579793, 673308, 1159586, 1739379, 2319172, 3478758, 5218137, 6957516, 10436274, 20872548]

約数ペア:

[(1, 20872548), (2, 10436274), (3, 6957516), (4, 5218137), (6, 3478758), (9, 2319172), (12, 1739379), (18, 1159586), (31, 673308), (36, 579793), (59, 353772), (62, 336654), (93, 224436), (118, 176886), (124, 168327), (177, 117924), (186, 112218), (236, 88443), (279, 74812), (317, 65844), (354, 58962), (372, 56109), (531, 39308), (558, 37406), (634, 32922), (708, 29481), (951, 21948), (1062, 19654), (1116, 18703), (1268, 16461), (1829, 11412), (1902, 10974), (2124, 9827), (2853, 7316), (3658, 5706), (3804, 5487)]