177801987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 282009600

約数和(自身を除く): 104207613

約数列:

[1, 3, 11, 29, 33, 47, 59, 67, 87, 141, 177, 201, 319, 517, 649, 737, 957, 1363, 1551, 1711, 1943, 1947, 2211, 2773, 3149, 3953, 4089, 5133, 5829, 8319, 9447, 11859, 14993, 18821, 21373, 30503, 34639, 43483, 44979, 56463, 64119, 80417, 91321, 91509, 103917, 114637, 130449, 185791, 241251, 273963, 343911, 557373, 884587, 1004531, 1261007, 2043701, 2653761, 3013593, 3783021, 5387939, 6131103, 16163817, 59267329, 177801987]

約数ペア:

[(1, 177801987), (3, 59267329), (11, 16163817), (29, 6131103), (33, 5387939), (47, 3783021), (59, 3013593), (67, 2653761), (87, 2043701), (141, 1261007), (177, 1004531), (201, 884587), (319, 557373), (517, 343911), (649, 273963), (737, 241251), (957, 185791), (1363, 130449), (1551, 114637), (1711, 103917), (1943, 91509), (1947, 91321), (2211, 80417), (2773, 64119), (3149, 56463), (3953, 44979), (4089, 43483), (5133, 34639), (5829, 30503), (8319, 21373), (9447, 18821), (11859, 14993)]