20090979610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{18979}}^1$

素因数の和:19495

約数の個数: 64

約数和(自身を含む): 41324774400

約数和(自身を除く): 21233794790

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 479, 958, 1105, 2210, 2395, 4790, 6227, 8143, 12454, 16286, 18979, 31135, 37958, 40715, 62270, 81430, 94895, 105859, 189790, 211718, 246727, 322643, 493454, 529295, 645286, 1058590, 1233635, 1613215, 2467270, 3226430, 4194359, 8388718, 9090941, 18181882, 20971795, 41943590, 45454705, 90909410, 118182233, 154545997, 236364466, 309091994, 590911165, 772729985, 1181822330, 1545459970, 2009097961, 4018195922, 10045489805, 20090979610]

約数ペア:

[(1, 20090979610), (2, 10045489805), (5, 4018195922), (10, 2009097961), (13, 1545459970), (17, 1181822330), (26, 772729985), (34, 590911165), (65, 309091994), (85, 236364466), (130, 154545997), (170, 118182233), (221, 90909410), (442, 45454705), (479, 41943590), (958, 20971795), (1105, 18181882), (2210, 9090941), (2395, 8388718), (4790, 4194359), (6227, 3226430), (8143, 2467270), (12454, 1613215), (16286, 1233635), (18979, 1058590), (31135, 645286), (37958, 529295), (40715, 493454), (62270, 322643), (81430, 246727), (94895, 211718), (105859, 189790)]