644920416

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{319901}}^1$

素因数の和:319924

約数の個数: 72

約数和(自身を含む): 2095997904

約数和(自身を除く): 1451077488

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 319901, 639802, 959703, 1279604, 1919406, 2239307, 2559208, 2879109, 3838812, 4478614, 5118416, 5758218, 6717921, 7677624, 8957228, 10236832, 11516436, 13435842, 15355248, 17914456, 20153763, 23032872, 26871684, 30710496, 35828912, 40307526, 46065744, 53743368, 71657824, 80615052, 92131488, 107486736, 161230104, 214973472, 322460208, 644920416]

約数ペア:

[(1, 644920416), (2, 322460208), (3, 214973472), (4, 161230104), (6, 107486736), (7, 92131488), (8, 80615052), (9, 71657824), (12, 53743368), (14, 46065744), (16, 40307526), (18, 35828912), (21, 30710496), (24, 26871684), (28, 23032872), (32, 20153763), (36, 17914456), (42, 15355248), (48, 13435842), (56, 11516436), (63, 10236832), (72, 8957228), (84, 7677624), (96, 6717921), (112, 5758218), (126, 5118416), (144, 4478614), (168, 3838812), (224, 2879109), (252, 2559208), (288, 2239307), (336, 1919406), (504, 1279604), (672, 959703), (1008, 639802), (2016, 319901)]