20253708

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 54434016

約数和(自身を除く): 34180308

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 61, 69, 92, 122, 138, 183, 207, 244, 276, 366, 401, 414, 549, 732, 802, 828, 1098, 1203, 1403, 1604, 2196, 2406, 2806, 3609, 4209, 4812, 5612, 7218, 8418, 9223, 12627, 14436, 16836, 18446, 24461, 25254, 27669, 36892, 48922, 50508, 55338, 73383, 83007, 97844, 110676, 146766, 166014, 220149, 293532, 332028, 440298, 562603, 880596, 1125206, 1687809, 2250412, 3375618, 5063427, 6751236, 10126854, 20253708]

約数ペア:

[(1, 20253708), (2, 10126854), (3, 6751236), (4, 5063427), (6, 3375618), (9, 2250412), (12, 1687809), (18, 1125206), (23, 880596), (36, 562603), (46, 440298), (61, 332028), (69, 293532), (92, 220149), (122, 166014), (138, 146766), (183, 110676), (207, 97844), (244, 83007), (276, 73383), (366, 55338), (401, 50508), (414, 48922), (549, 36892), (732, 27669), (802, 25254), (828, 24461), (1098, 18446), (1203, 16836), (1403, 14436), (1604, 12627), (2196, 9223), (2406, 8418), (2806, 7218), (3609, 5612), (4209, 4812)]