81272340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:398

約数の個数: 144

約数和(自身を含む): 261975168

約数和(自身を除く): 180702828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 67, 69, 90, 92, 115, 134, 138, 180, 201, 207, 230, 268, 276, 293, 335, 345, 402, 414, 460, 586, 603, 670, 690, 804, 828, 879, 1005, 1035, 1172, 1206, 1340, 1380, 1465, 1541, 1758, 2010, 2070, 2412, 2637, 2930, 3015, 3082, 3516, 4020, 4140, 4395, 4623, 5274, 5860, 6030, 6164, 6739, 7705, 8790, 9246, 10548, 12060, 13185, 13478, 13869, 15410, 17580, 18492, 19631, 20217, 23115, 26370, 26956, 27738, 30820, 33695, 39262, 40434, 46230, 52740, 55476, 58893, 60651, 67390, 69345, 78524, 80868, 92460, 98155, 101085, 117786, 121302, 134780, 138690, 176679, 196310, 202170, 235572, 242604, 277380, 294465, 303255, 353358, 392620, 404340, 451513, 588930, 606510, 706716, 883395, 903026, 1177860, 1213020, 1354539, 1766790, 1806052, 2257565, 2709078, 3533580, 4063617, 4515130, 5418156, 6772695, 8127234, 9030260, 13545390, 16254468, 20318085, 27090780, 40636170, 81272340]

約数ペア:

[(1, 81272340), (2, 40636170), (3, 27090780), (4, 20318085), (5, 16254468), (6, 13545390), (9, 9030260), (10, 8127234), (12, 6772695), (15, 5418156), (18, 4515130), (20, 4063617), (23, 3533580), (30, 2709078), (36, 2257565), (45, 1806052), (46, 1766790), (60, 1354539), (67, 1213020), (69, 1177860), (90, 903026), (92, 883395), (115, 706716), (134, 606510), (138, 588930), (180, 451513), (201, 404340), (207, 392620), (230, 353358), (268, 303255), (276, 294465), (293, 277380), (335, 242604), (345, 235572), (402, 202170), (414, 196310), (460, 176679), (586, 138690), (603, 134780), (670, 121302), (690, 117786), (804, 101085), (828, 98155), (879, 92460), (1005, 80868), (1035, 78524), (1172, 69345), (1206, 67390), (1340, 60651), (1380, 58893), (1465, 55476), (1541, 52740), (1758, 46230), (2010, 40434), (2070, 39262), (2412, 33695), (2637, 30820), (2930, 27738), (3015, 26956), (3082, 26370), (3516, 23115), (4020, 20217), (4140, 19631), (4395, 18492), (4623, 17580), (5274, 15410), (5860, 13869), (6030, 13478), (6164, 13185), (6739, 12060), (7705, 10548), (8790, 9246)]