20197416100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{625307}}^1$

素因数の和:625357

約数の個数: 72

約数和(自身を含む): 48849060960

約数和(自身を除く): 28651644860

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 170, 190, 323, 340, 380, 425, 475, 646, 850, 950, 1292, 1615, 1700, 1900, 3230, 6460, 8075, 16150, 32300, 625307, 1250614, 2501228, 3126535, 6253070, 10630219, 11880833, 12506140, 15632675, 21260438, 23761666, 31265350, 42520876, 47523332, 53151095, 59404165, 62530700, 106302190, 118808330, 201974161, 212604380, 237616660, 265755475, 297020825, 403948322, 531510950, 594041650, 807896644, 1009870805, 1063021900, 1188083300, 2019741610, 4039483220, 5049354025, 10098708050, 20197416100]

約数ペア:

[(1, 20197416100), (2, 10098708050), (4, 5049354025), (5, 4039483220), (10, 2019741610), (17, 1188083300), (19, 1063021900), (20, 1009870805), (25, 807896644), (34, 594041650), (38, 531510950), (50, 403948322), (68, 297020825), (76, 265755475), (85, 237616660), (95, 212604380), (100, 201974161), (170, 118808330), (190, 106302190), (323, 62530700), (340, 59404165), (380, 53151095), (425, 47523332), (475, 42520876), (646, 31265350), (850, 23761666), (950, 21260438), (1292, 15632675), (1615, 12506140), (1700, 11880833), (1900, 10630219), (3230, 6253070), (6460, 3126535), (8075, 2501228), (16150, 1250614), (32300, 625307)]