278345340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{16993}}^1$

素因数の和:17028

約数の個数: 144

約数和(自身を含む): 1039217088

約数和(自身を除く): 760871748

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 5460, 8190, 16380, 16993, 33986, 50979, 67972, 84965, 101958, 118951, 152937, 169930, 203916, 220909, 237902, 254895, 305874, 339860, 356853, 441818, 475804, 509790, 594755, 611748, 662727, 713706, 764685, 883636, 1019580, 1070559, 1104545, 1189510, 1325454, 1427412, 1529370, 1546363, 1784265, 1988181, 2141118, 2209090, 2379020, 2650908, 3058740, 3092726, 3313635, 3568530, 3976362, 4282236, 4418180, 4639089, 5352795, 6185452, 6627270, 7137060, 7731815, 7952724, 9278178, 9940905, 10705590, 13254540, 13917267, 15463630, 18556356, 19881810, 21411180, 23195445, 27834534, 30927260, 39763620, 46390890, 55669068, 69586335, 92781780, 139172670, 278345340]

約数ペア:

[(1, 278345340), (2, 139172670), (3, 92781780), (4, 69586335), (5, 55669068), (6, 46390890), (7, 39763620), (9, 30927260), (10, 27834534), (12, 23195445), (13, 21411180), (14, 19881810), (15, 18556356), (18, 15463630), (20, 13917267), (21, 13254540), (26, 10705590), (28, 9940905), (30, 9278178), (35, 7952724), (36, 7731815), (39, 7137060), (42, 6627270), (45, 6185452), (52, 5352795), (60, 4639089), (63, 4418180), (65, 4282236), (70, 3976362), (78, 3568530), (84, 3313635), (90, 3092726), (91, 3058740), (105, 2650908), (117, 2379020), (126, 2209090), (130, 2141118), (140, 1988181), (156, 1784265), (180, 1546363), (182, 1529370), (195, 1427412), (210, 1325454), (234, 1189510), (252, 1104545), (260, 1070559), (273, 1019580), (315, 883636), (364, 764685), (390, 713706), (420, 662727), (455, 611748), (468, 594755), (546, 509790), (585, 475804), (630, 441818), (780, 356853), (819, 339860), (910, 305874), (1092, 254895), (1170, 237902), (1260, 220909), (1365, 203916), (1638, 169930), (1820, 152937), (2340, 118951), (2730, 101958), (3276, 84965), (4095, 67972), (5460, 50979), (8190, 33986), (16380, 16993)]