18345860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 42526512

約数和(自身を除く): 24180652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1721, 2132, 2665, 3442, 5330, 6884, 8605, 10660, 17210, 22373, 34420, 44746, 70561, 89492, 111865, 141122, 223730, 282244, 352805, 447460, 705610, 917293, 1411220, 1834586, 3669172, 4586465, 9172930, 18345860]

約数ペア:

[(1, 18345860), (2, 9172930), (4, 4586465), (5, 3669172), (10, 1834586), (13, 1411220), (20, 917293), (26, 705610), (41, 447460), (52, 352805), (65, 282244), (82, 223730), (130, 141122), (164, 111865), (205, 89492), (260, 70561), (410, 44746), (533, 34420), (820, 22373), (1066, 17210), (1721, 10660), (2132, 8605), (2665, 6884), (3442, 5330)]