1285494020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{743}}^1$

素因数の和:957

約数の個数: 96

約数和(自身を含む): 2962310400

約数和(自身を除く): 1676816380

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 157, 190, 290, 314, 380, 551, 580, 628, 743, 785, 1102, 1486, 1570, 2204, 2755, 2972, 2983, 3140, 3715, 4553, 5510, 5966, 7430, 9106, 11020, 11932, 14117, 14860, 14915, 18212, 21547, 22765, 28234, 29830, 43094, 45530, 56468, 59660, 70585, 86188, 86507, 91060, 107735, 116651, 141170, 173014, 215470, 233302, 282340, 346028, 409393, 430940, 432535, 466604, 583255, 818786, 865070, 1166510, 1637572, 1730140, 2046965, 2216369, 2333020, 3382879, 4093930, 4432738, 6765758, 8187860, 8865476, 11081845, 13531516, 16914395, 22163690, 33828790, 44327380, 64274701, 67657580, 128549402, 257098804, 321373505, 642747010, 1285494020]

約数ペア:

[(1, 1285494020), (2, 642747010), (4, 321373505), (5, 257098804), (10, 128549402), (19, 67657580), (20, 64274701), (29, 44327380), (38, 33828790), (58, 22163690), (76, 16914395), (95, 13531516), (116, 11081845), (145, 8865476), (157, 8187860), (190, 6765758), (290, 4432738), (314, 4093930), (380, 3382879), (551, 2333020), (580, 2216369), (628, 2046965), (743, 1730140), (785, 1637572), (1102, 1166510), (1486, 865070), (1570, 818786), (2204, 583255), (2755, 466604), (2972, 432535), (2983, 430940), (3140, 409393), (3715, 346028), (4553, 282340), (5510, 233302), (5966, 215470), (7430, 173014), (9106, 141170), (11020, 116651), (11932, 107735), (14117, 91060), (14860, 86507), (14915, 86188), (18212, 70585), (21547, 59660), (22765, 56468), (28234, 45530), (29830, 43094)]