131490640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 335904840

約数和(自身を除く): 204414200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 157, 190, 232, 290, 304, 314, 361, 380, 464, 551, 580, 628, 722, 760, 785, 1102, 1160, 1256, 1444, 1520, 1570, 1805, 2204, 2320, 2512, 2755, 2888, 2983, 3140, 3610, 4408, 4553, 5510, 5776, 5966, 6280, 7220, 8816, 9106, 10469, 11020, 11932, 12560, 14440, 14915, 18212, 20938, 22040, 22765, 23864, 28880, 29830, 36424, 41876, 44080, 45530, 47728, 52345, 56677, 59660, 72848, 83752, 86507, 91060, 104690, 113354, 119320, 167504, 173014, 182120, 209380, 226708, 238640, 283385, 346028, 364240, 418760, 432535, 453416, 566770, 692056, 837520, 865070, 906832, 1133540, 1384112, 1643633, 1730140, 2267080, 3287266, 3460280, 4534160, 6574532, 6920560, 8218165, 13149064, 16436330, 26298128, 32872660, 65745320, 131490640]

約数ペア:

[(1, 131490640), (2, 65745320), (4, 32872660), (5, 26298128), (8, 16436330), (10, 13149064), (16, 8218165), (19, 6920560), (20, 6574532), (29, 4534160), (38, 3460280), (40, 3287266), (58, 2267080), (76, 1730140), (80, 1643633), (95, 1384112), (116, 1133540), (145, 906832), (152, 865070), (157, 837520), (190, 692056), (232, 566770), (290, 453416), (304, 432535), (314, 418760), (361, 364240), (380, 346028), (464, 283385), (551, 238640), (580, 226708), (628, 209380), (722, 182120), (760, 173014), (785, 167504), (1102, 119320), (1160, 113354), (1256, 104690), (1444, 91060), (1520, 86507), (1570, 83752), (1805, 72848), (2204, 59660), (2320, 56677), (2512, 52345), (2755, 47728), (2888, 45530), (2983, 44080), (3140, 41876), (3610, 36424), (4408, 29830), (4553, 28880), (5510, 23864), (5776, 22765), (5966, 22040), (6280, 20938), (7220, 18212), (8816, 14915), (9106, 14440), (10469, 12560), (11020, 11932)]