20147393950

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{739}}^1$

素因数の和:1082

約数の個数: 96

約数和(自身を含む): 39666746880

約数和(自身を除く): 19519352930

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 151, 157, 230, 302, 314, 575, 739, 755, 785, 1150, 1478, 1510, 1570, 3473, 3611, 3695, 3775, 3925, 6946, 7222, 7390, 7550, 7850, 16997, 17365, 18055, 18475, 23707, 33994, 34730, 36110, 36950, 47414, 84985, 86825, 90275, 111589, 116023, 118535, 169970, 173650, 180550, 223178, 232046, 237070, 424925, 545261, 557945, 580115, 592675, 849850, 1090522, 1115890, 1160230, 1185350, 2566547, 2668529, 2726305, 2789725, 2900575, 5133094, 5337058, 5452610, 5579450, 5801150, 12832735, 13342645, 13631525, 17519473, 25665470, 26685290, 27263050, 35038946, 64163675, 66713225, 87597365, 128327350, 133426450, 175194730, 402947879, 437986825, 805895758, 875973650, 2014739395, 4029478790, 10073696975, 20147393950]

約数ペア:

[(1, 20147393950), (2, 10073696975), (5, 4029478790), (10, 2014739395), (23, 875973650), (25, 805895758), (46, 437986825), (50, 402947879), (115, 175194730), (151, 133426450), (157, 128327350), (230, 87597365), (302, 66713225), (314, 64163675), (575, 35038946), (739, 27263050), (755, 26685290), (785, 25665470), (1150, 17519473), (1478, 13631525), (1510, 13342645), (1570, 12832735), (3473, 5801150), (3611, 5579450), (3695, 5452610), (3775, 5337058), (3925, 5133094), (6946, 2900575), (7222, 2789725), (7390, 2726305), (7550, 2668529), (7850, 2566547), (16997, 1185350), (17365, 1160230), (18055, 1115890), (18475, 1090522), (23707, 849850), (33994, 592675), (34730, 580115), (36110, 557945), (36950, 545261), (47414, 424925), (84985, 237070), (86825, 232046), (90275, 223178), (111589, 180550), (116023, 173650), (118535, 169970)]