81335820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3467}}^1$

素因数の和:3519

約数の個数: 96

約数和(自身を含む): 251693568

約数和(自身を除く): 170357748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 170, 204, 230, 255, 276, 340, 345, 391, 460, 510, 690, 782, 1020, 1173, 1380, 1564, 1955, 2346, 3467, 3910, 4692, 5865, 6934, 7820, 10401, 11730, 13868, 17335, 20802, 23460, 34670, 41604, 52005, 58939, 69340, 79741, 104010, 117878, 159482, 176817, 208020, 235756, 239223, 294695, 318964, 353634, 398705, 478446, 589390, 707268, 797410, 884085, 956892, 1178780, 1196115, 1355597, 1594820, 1768170, 2392230, 2711194, 3536340, 4066791, 4784460, 5422388, 6777985, 8133582, 13555970, 16267164, 20333955, 27111940, 40667910, 81335820]

約数ペア:

[(1, 81335820), (2, 40667910), (3, 27111940), (4, 20333955), (5, 16267164), (6, 13555970), (10, 8133582), (12, 6777985), (15, 5422388), (17, 4784460), (20, 4066791), (23, 3536340), (30, 2711194), (34, 2392230), (46, 1768170), (51, 1594820), (60, 1355597), (68, 1196115), (69, 1178780), (85, 956892), (92, 884085), (102, 797410), (115, 707268), (138, 589390), (170, 478446), (204, 398705), (230, 353634), (255, 318964), (276, 294695), (340, 239223), (345, 235756), (391, 208020), (460, 176817), (510, 159482), (690, 117878), (782, 104010), (1020, 79741), (1173, 69340), (1380, 58939), (1564, 52005), (1955, 41604), (2346, 34670), (3467, 23460), (3910, 20802), (4692, 17335), (5865, 13868), (6934, 11730), (7820, 10401)]