19198660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1801}}^1$

素因数の和:1864

約数の個数: 48

約数和(自身を含む): 44502192

約数和(自身を除く): 25303532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1801, 2132, 2665, 3602, 5330, 7204, 9005, 10660, 18010, 23413, 36020, 46826, 73841, 93652, 117065, 147682, 234130, 295364, 369205, 468260, 738410, 959933, 1476820, 1919866, 3839732, 4799665, 9599330, 19198660]

約数ペア:

[(1, 19198660), (2, 9599330), (4, 4799665), (5, 3839732), (10, 1919866), (13, 1476820), (20, 959933), (26, 738410), (41, 468260), (52, 369205), (65, 295364), (82, 234130), (130, 147682), (164, 117065), (205, 93652), (260, 73841), (410, 46826), (533, 36020), (820, 23413), (1066, 18010), (1801, 10660), (2132, 9005), (2665, 7204), (3602, 5330)]