30900220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6991}}^1$

素因数の和:7030

約数の個数: 48

約数和(自身を含む): 74003328

約数和(自身を除く): 43103108

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 6991, 13982, 27964, 34955, 69910, 90883, 118847, 139820, 181766, 237694, 363532, 454415, 475388, 594235, 908830, 1188470, 1545011, 1817660, 2376940, 3090022, 6180044, 7725055, 15450110, 30900220]

約数ペア:

[(1, 30900220), (2, 15450110), (4, 7725055), (5, 6180044), (10, 3090022), (13, 2376940), (17, 1817660), (20, 1545011), (26, 1188470), (34, 908830), (52, 594235), (65, 475388), (68, 454415), (85, 363532), (130, 237694), (170, 181766), (221, 139820), (260, 118847), (340, 90883), (442, 69910), (884, 34955), (1105, 27964), (2210, 13982), (4420, 6991)]