216021640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 541209600

約数和(自身を除く): 325187960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 53, 62, 76, 95, 106, 124, 152, 155, 173, 190, 212, 248, 265, 310, 346, 380, 424, 530, 589, 620, 692, 760, 865, 1007, 1060, 1178, 1240, 1384, 1643, 1730, 2014, 2120, 2356, 2945, 3286, 3287, 3460, 4028, 4712, 5035, 5363, 5890, 6572, 6574, 6920, 8056, 8215, 9169, 10070, 10726, 11780, 13144, 13148, 16430, 16435, 18338, 20140, 21452, 23560, 26296, 26815, 31217, 32860, 32870, 36676, 40280, 42904, 45845, 53630, 62434, 65720, 65740, 73352, 91690, 101897, 107260, 124868, 131480, 156085, 174211, 183380, 203794, 214520, 249736, 284239, 312170, 348422, 366760, 407588, 509485, 568478, 624340, 696844, 815176, 871055, 1018970, 1136956, 1248680, 1393688, 1421195, 1742110, 2037940, 2273912, 2842390, 3484220, 4075880, 5400541, 5684780, 6968440, 10801082, 11369560, 21602164, 27002705, 43204328, 54005410, 108010820, 216021640]

約数ペア:

[(1, 216021640), (2, 108010820), (4, 54005410), (5, 43204328), (8, 27002705), (10, 21602164), (19, 11369560), (20, 10801082), (31, 6968440), (38, 5684780), (40, 5400541), (53, 4075880), (62, 3484220), (76, 2842390), (95, 2273912), (106, 2037940), (124, 1742110), (152, 1421195), (155, 1393688), (173, 1248680), (190, 1136956), (212, 1018970), (248, 871055), (265, 815176), (310, 696844), (346, 624340), (380, 568478), (424, 509485), (530, 407588), (589, 366760), (620, 348422), (692, 312170), (760, 284239), (865, 249736), (1007, 214520), (1060, 203794), (1178, 183380), (1240, 174211), (1384, 156085), (1643, 131480), (1730, 124868), (2014, 107260), (2120, 101897), (2356, 91690), (2945, 73352), (3286, 65740), (3287, 65720), (3460, 62434), (4028, 53630), (4712, 45845), (5035, 42904), (5363, 40280), (5890, 36676), (6572, 32870), (6574, 32860), (6920, 31217), (8056, 26815), (8215, 26296), (9169, 23560), (10070, 21452), (10726, 20140), (11780, 18338), (13144, 16435), (13148, 16430)]