4380220

素因数分解:

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

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 10499328

約数和(自身を除く): 6119108

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 991, 1105, 1982, 2210, 3964, 4420, 4955, 9910, 12883, 16847, 19820, 25766, 33694, 51532, 64415, 67388, 84235, 128830, 168470, 219011, 257660, 336940, 438022, 876044, 1095055, 2190110, 4380220]

約数ペア:

[(1, 4380220), (2, 2190110), (4, 1095055), (5, 876044), (10, 438022), (13, 336940), (17, 257660), (20, 219011), (26, 168470), (34, 128830), (52, 84235), (65, 67388), (68, 64415), (85, 51532), (130, 33694), (170, 25766), (221, 19820), (260, 16847), (340, 12883), (442, 9910), (884, 4955), (991, 4420), (1105, 3964), (1982, 2210)]