391627012

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1021}}^1$

素因数の和:1161

約数の個数: 72

約数和(自身を含む): 848178240

約数和(自身を除く): 456551228

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 103, 133, 196, 206, 266, 412, 532, 721, 931, 1021, 1442, 1862, 1957, 2042, 2884, 3724, 3914, 4084, 5047, 7147, 7828, 10094, 13699, 14294, 19399, 20188, 27398, 28588, 38798, 50029, 54796, 77596, 95893, 100058, 105163, 135793, 191786, 200116, 210326, 271586, 383572, 420652, 543172, 736141, 950551, 1472282, 1901102, 1998097, 2944564, 3802204, 3996194, 5152987, 7992388, 10305974, 13986679, 20611948, 27973358, 55946716, 97906753, 195813506, 391627012]

約数ペア:

[(1, 391627012), (2, 195813506), (4, 97906753), (7, 55946716), (14, 27973358), (19, 20611948), (28, 13986679), (38, 10305974), (49, 7992388), (76, 5152987), (98, 3996194), (103, 3802204), (133, 2944564), (196, 1998097), (206, 1901102), (266, 1472282), (412, 950551), (532, 736141), (721, 543172), (931, 420652), (1021, 383572), (1442, 271586), (1862, 210326), (1957, 200116), (2042, 191786), (2884, 135793), (3724, 105163), (3914, 100058), (4084, 95893), (5047, 77596), (7147, 54796), (7828, 50029), (10094, 38798), (13699, 28588), (14294, 27398), (19399, 20188)]