850340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 1968624

約数和(自身を除く): 1118284

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 61, 68, 82, 85, 122, 164, 170, 205, 244, 305, 340, 410, 610, 697, 820, 1037, 1220, 1394, 2074, 2501, 2788, 3485, 4148, 5002, 5185, 6970, 10004, 10370, 12505, 13940, 20740, 25010, 42517, 50020, 85034, 170068, 212585, 425170, 850340]

約数ペア:

[(1, 850340), (2, 425170), (4, 212585), (5, 170068), (10, 85034), (17, 50020), (20, 42517), (34, 25010), (41, 20740), (61, 13940), (68, 12505), (82, 10370), (85, 10004), (122, 6970), (164, 5185), (170, 5002), (205, 4148), (244, 3485), (305, 2788), (340, 2501), (410, 2074), (610, 1394), (697, 1220), (820, 1037)]