79881940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1597}}^1$

素因数の和:1708

約数の個数: 48

約数和(自身を含む): 174770064

約数和(自身を除く): 94888124

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 610, 820, 1220, 1597, 2501, 3194, 5002, 6388, 7985, 10004, 12505, 15970, 25010, 31940, 50020, 65477, 97417, 130954, 194834, 261908, 327385, 389668, 487085, 654770, 974170, 1309540, 1948340, 3994097, 7988194, 15976388, 19970485, 39940970, 79881940]

約数ペア:

[(1, 79881940), (2, 39940970), (4, 19970485), (5, 15976388), (10, 7988194), (20, 3994097), (41, 1948340), (61, 1309540), (82, 974170), (122, 654770), (164, 487085), (205, 389668), (244, 327385), (305, 261908), (410, 194834), (610, 130954), (820, 97417), (1220, 65477), (1597, 50020), (2501, 31940), (3194, 25010), (5002, 15970), (6388, 12505), (7985, 10004)]