81465770

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 160683264

約数和(自身を除く): 79217494

約数列:

[1, 2, 5, 10, 23, 41, 46, 53, 82, 106, 115, 163, 205, 230, 265, 326, 410, 530, 815, 943, 1219, 1630, 1886, 2173, 2438, 3749, 4346, 4715, 6095, 6683, 7498, 8639, 9430, 10865, 12190, 13366, 17278, 18745, 21730, 33415, 37490, 43195, 49979, 66830, 86390, 99958, 153709, 198697, 249895, 307418, 354199, 397394, 499790, 708398, 768545, 993485, 1537090, 1770995, 1986970, 3541990, 8146577, 16293154, 40732885, 81465770]

約数ペア:

[(1, 81465770), (2, 40732885), (5, 16293154), (10, 8146577), (23, 3541990), (41, 1986970), (46, 1770995), (53, 1537090), (82, 993485), (106, 768545), (115, 708398), (163, 499790), (205, 397394), (230, 354199), (265, 307418), (326, 249895), (410, 198697), (530, 153709), (815, 99958), (943, 86390), (1219, 66830), (1630, 49979), (1886, 43195), (2173, 37490), (2438, 33415), (3749, 21730), (4346, 18745), (4715, 17278), (6095, 13366), (6683, 12190), (7498, 10865), (8639, 9430)]