19901847255

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{40813}}^1$

素因数の和:40928

約数の個数: 64

約数和(自身を含む): 35263296000

約数和(自身を除く): 15361448745

約数列:

[1, 3, 5, 15, 19, 29, 57, 59, 87, 95, 145, 177, 285, 295, 435, 551, 885, 1121, 1653, 1711, 2755, 3363, 5133, 5605, 8265, 8555, 16815, 25665, 32509, 40813, 97527, 122439, 162545, 204065, 487635, 612195, 775447, 1183577, 2326341, 2407967, 3550731, 3877235, 5917885, 7223901, 11631705, 12039835, 17753655, 22487963, 36119505, 45751373, 67463889, 69831043, 112439815, 137254119, 209493129, 228756865, 337319445, 349155215, 686270595, 1047465645, 1326789817, 3980369451, 6633949085, 19901847255]

約数ペア:

[(1, 19901847255), (3, 6633949085), (5, 3980369451), (15, 1326789817), (19, 1047465645), (29, 686270595), (57, 349155215), (59, 337319445), (87, 228756865), (95, 209493129), (145, 137254119), (177, 112439815), (285, 69831043), (295, 67463889), (435, 45751373), (551, 36119505), (885, 22487963), (1121, 17753655), (1653, 12039835), (1711, 11631705), (2755, 7223901), (3363, 5917885), (5133, 3877235), (5605, 3550731), (8265, 2407967), (8555, 2326341), (16815, 1183577), (25665, 775447), (32509, 612195), (40813, 487635), (97527, 204065), (122439, 162545)]