197982820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 489968640

約数和(自身を除く): 291985820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 97, 122, 140, 194, 239, 244, 305, 388, 427, 478, 485, 610, 679, 854, 956, 970, 1195, 1220, 1358, 1673, 1708, 1940, 2135, 2390, 2716, 3346, 3395, 4270, 4780, 5917, 6692, 6790, 8365, 8540, 11834, 13580, 14579, 16730, 23183, 23668, 29158, 29585, 33460, 41419, 46366, 58316, 59170, 72895, 82838, 92732, 102053, 115915, 118340, 145790, 162281, 165676, 204106, 207095, 231830, 291580, 324562, 408212, 414190, 463660, 510265, 649124, 811405, 828380, 1020530, 1414163, 1622810, 2041060, 2828326, 3245620, 5656652, 7070815, 9899141, 14141630, 19798282, 28283260, 39596564, 49495705, 98991410, 197982820]

約数ペア:

[(1, 197982820), (2, 98991410), (4, 49495705), (5, 39596564), (7, 28283260), (10, 19798282), (14, 14141630), (20, 9899141), (28, 7070815), (35, 5656652), (61, 3245620), (70, 2828326), (97, 2041060), (122, 1622810), (140, 1414163), (194, 1020530), (239, 828380), (244, 811405), (305, 649124), (388, 510265), (427, 463660), (478, 414190), (485, 408212), (610, 324562), (679, 291580), (854, 231830), (956, 207095), (970, 204106), (1195, 165676), (1220, 162281), (1358, 145790), (1673, 118340), (1708, 115915), (1940, 102053), (2135, 92732), (2390, 82838), (2716, 72895), (3346, 59170), (3395, 58316), (4270, 46366), (4780, 41419), (5917, 33460), (6692, 29585), (6790, 29158), (8365, 23668), (8540, 23183), (11834, 16730), (13580, 14579)]