56942860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{991}}^1$

素因数の和:1043

約数の個数: 72

約数和(自身を含む): 137241216

約数和(自身を除く): 80298356

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 442, 676, 845, 884, 991, 1105, 1690, 1982, 2210, 2873, 3380, 3964, 4420, 4955, 5746, 9910, 11492, 12883, 14365, 16847, 19820, 25766, 28730, 33694, 51532, 57460, 64415, 67388, 84235, 128830, 167479, 168470, 219011, 257660, 334958, 336940, 438022, 669916, 837395, 876044, 1095055, 1674790, 2190110, 2847143, 3349580, 4380220, 5694286, 11388572, 14235715, 28471430, 56942860]

約数ペア:

[(1, 56942860), (2, 28471430), (4, 14235715), (5, 11388572), (10, 5694286), (13, 4380220), (17, 3349580), (20, 2847143), (26, 2190110), (34, 1674790), (52, 1095055), (65, 876044), (68, 837395), (85, 669916), (130, 438022), (169, 336940), (170, 334958), (221, 257660), (260, 219011), (338, 168470), (340, 167479), (442, 128830), (676, 84235), (845, 67388), (884, 64415), (991, 57460), (1105, 51532), (1690, 33694), (1982, 28730), (2210, 25766), (2873, 19820), (3380, 16847), (3964, 14365), (4420, 12883), (4955, 11492), (5746, 9910)]