15831940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 35622720

約数和(自身を除く): 19790780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 683, 1159, 1220, 1366, 2318, 2732, 3415, 4636, 5795, 6830, 11590, 12977, 13660, 23180, 25954, 41663, 51908, 64885, 83326, 129770, 166652, 208315, 259540, 416630, 791597, 833260, 1583194, 3166388, 3957985, 7915970, 15831940]

約数ペア:

[(1, 15831940), (2, 7915970), (4, 3957985), (5, 3166388), (10, 1583194), (19, 833260), (20, 791597), (38, 416630), (61, 259540), (76, 208315), (95, 166652), (122, 129770), (190, 83326), (244, 64885), (305, 51908), (380, 41663), (610, 25954), (683, 23180), (1159, 13660), (1220, 12977), (1366, 11590), (2318, 6830), (2732, 5795), (3415, 4636)]