990578960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1327}}^1$

素因数の和:1421

約数の個数: 160

約数和(自身を含む): 2782298112

約数和(自身を除く): 1791719152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 43, 56, 62, 70, 80, 86, 112, 124, 140, 155, 172, 215, 217, 248, 280, 301, 310, 344, 430, 434, 496, 560, 602, 620, 688, 860, 868, 1085, 1204, 1240, 1327, 1333, 1505, 1720, 1736, 2170, 2408, 2480, 2654, 2666, 3010, 3440, 3472, 4340, 4816, 5308, 5332, 6020, 6635, 6665, 8680, 9289, 9331, 10616, 10664, 12040, 13270, 13330, 17360, 18578, 18662, 21232, 21328, 24080, 26540, 26660, 37156, 37324, 41137, 46445, 46655, 53080, 53320, 57061, 74312, 74648, 82274, 92890, 93310, 106160, 106640, 114122, 148624, 149296, 164548, 185780, 186620, 205685, 228244, 285305, 287959, 329096, 371560, 373240, 399427, 411370, 456488, 570610, 575918, 658192, 743120, 746480, 798854, 822740, 912976, 1141220, 1151836, 1439795, 1597708, 1645480, 1768891, 1997135, 2282440, 2303672, 2879590, 3195416, 3290960, 3537782, 3994270, 4564880, 4607344, 5759180, 6390832, 7075564, 7988540, 8844455, 11518360, 12382237, 14151128, 15977080, 17688910, 23036720, 24764474, 28302256, 31954160, 35377820, 49528948, 61911185, 70755640, 99057896, 123822370, 141511280, 198115792, 247644740, 495289480, 990578960]

約数ペア:

[(1, 990578960), (2, 495289480), (4, 247644740), (5, 198115792), (7, 141511280), (8, 123822370), (10, 99057896), (14, 70755640), (16, 61911185), (20, 49528948), (28, 35377820), (31, 31954160), (35, 28302256), (40, 24764474), (43, 23036720), (56, 17688910), (62, 15977080), (70, 14151128), (80, 12382237), (86, 11518360), (112, 8844455), (124, 7988540), (140, 7075564), (155, 6390832), (172, 5759180), (215, 4607344), (217, 4564880), (248, 3994270), (280, 3537782), (301, 3290960), (310, 3195416), (344, 2879590), (430, 2303672), (434, 2282440), (496, 1997135), (560, 1768891), (602, 1645480), (620, 1597708), (688, 1439795), (860, 1151836), (868, 1141220), (1085, 912976), (1204, 822740), (1240, 798854), (1327, 746480), (1333, 743120), (1505, 658192), (1720, 575918), (1736, 570610), (2170, 456488), (2408, 411370), (2480, 399427), (2654, 373240), (2666, 371560), (3010, 329096), (3440, 287959), (3472, 285305), (4340, 228244), (4816, 205685), (5308, 186620), (5332, 185780), (6020, 164548), (6635, 149296), (6665, 148624), (8680, 114122), (9289, 106640), (9331, 106160), (10616, 93310), (10664, 92890), (12040, 82274), (13270, 74648), (13330, 74312), (17360, 57061), (18578, 53320), (18662, 53080), (21232, 46655), (21328, 46445), (24080, 41137), (26540, 37324), (26660, 37156)]