255908380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:468

約数の個数: 144

約数和(自身を含む): 687748320

約数和(自身を除く): 431839940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 53, 65, 70, 91, 98, 106, 130, 140, 182, 196, 212, 245, 260, 265, 364, 371, 379, 455, 490, 530, 637, 689, 742, 758, 910, 980, 1060, 1274, 1378, 1484, 1516, 1820, 1855, 1895, 2548, 2597, 2653, 2756, 3185, 3445, 3710, 3790, 4823, 4927, 5194, 5306, 6370, 6890, 7420, 7580, 9646, 9854, 10388, 10612, 12740, 12985, 13265, 13780, 18571, 19292, 19708, 20087, 24115, 24635, 25970, 26530, 33761, 34489, 37142, 40174, 48230, 49270, 51940, 53060, 67522, 68978, 74284, 80348, 92855, 96460, 98540, 100435, 135044, 137956, 140609, 168805, 172445, 185710, 200870, 241423, 261131, 281218, 337610, 344890, 371420, 401740, 482846, 522262, 562436, 675220, 689780, 703045, 965692, 984263, 1044524, 1207115, 1305655, 1406090, 1827917, 1968526, 2414230, 2611310, 2812180, 3655834, 3937052, 4828460, 4921315, 5222620, 7311668, 9139585, 9842630, 12795419, 18279170, 19685260, 25590838, 36558340, 51181676, 63977095, 127954190, 255908380]

約数ペア:

[(1, 255908380), (2, 127954190), (4, 63977095), (5, 51181676), (7, 36558340), (10, 25590838), (13, 19685260), (14, 18279170), (20, 12795419), (26, 9842630), (28, 9139585), (35, 7311668), (49, 5222620), (52, 4921315), (53, 4828460), (65, 3937052), (70, 3655834), (91, 2812180), (98, 2611310), (106, 2414230), (130, 1968526), (140, 1827917), (182, 1406090), (196, 1305655), (212, 1207115), (245, 1044524), (260, 984263), (265, 965692), (364, 703045), (371, 689780), (379, 675220), (455, 562436), (490, 522262), (530, 482846), (637, 401740), (689, 371420), (742, 344890), (758, 337610), (910, 281218), (980, 261131), (1060, 241423), (1274, 200870), (1378, 185710), (1484, 172445), (1516, 168805), (1820, 140609), (1855, 137956), (1895, 135044), (2548, 100435), (2597, 98540), (2653, 96460), (2756, 92855), (3185, 80348), (3445, 74284), (3710, 68978), (3790, 67522), (4823, 53060), (4927, 51940), (5194, 49270), (5306, 48230), (6370, 40174), (6890, 37142), (7420, 34489), (7580, 33761), (9646, 26530), (9854, 25970), (10388, 24635), (10612, 24115), (12740, 20087), (12985, 19708), (13265, 19292), (13780, 18571)]