642012112

素因数分解:

$2^4\times 7^2\times {\mathrm{41}}^1\times {\mathrm{19973}}^1$

素因数の和:20036

約数の個数: 60

約数和(自身を含む): 1482350436

約数和(自身を除く): 840338324

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 49, 56, 82, 98, 112, 164, 196, 287, 328, 392, 574, 656, 784, 1148, 2009, 2296, 4018, 4592, 8036, 16072, 19973, 32144, 39946, 79892, 139811, 159784, 279622, 319568, 559244, 818893, 978677, 1118488, 1637786, 1957354, 2236976, 3275572, 3914708, 5732251, 6551144, 7829416, 11464502, 13102288, 15658832, 22929004, 40125757, 45858008, 80251514, 91716016, 160503028, 321006056, 642012112]

約数ペア:

[(1, 642012112), (2, 321006056), (4, 160503028), (7, 91716016), (8, 80251514), (14, 45858008), (16, 40125757), (28, 22929004), (41, 15658832), (49, 13102288), (56, 11464502), (82, 7829416), (98, 6551144), (112, 5732251), (164, 3914708), (196, 3275572), (287, 2236976), (328, 1957354), (392, 1637786), (574, 1118488), (656, 978677), (784, 818893), (1148, 559244), (2009, 319568), (2296, 279622), (4018, 159784), (4592, 139811), (8036, 79892), (16072, 39946), (19973, 32144)]