1818369920

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{653}}^1$

素因数の和:920

約数の個数: 128

約数和(自身を含む): 4602852000

約数和(自身を除く): 2784482080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 229, 304, 320, 380, 458, 608, 640, 653, 760, 916, 1145, 1216, 1306, 1520, 1832, 2290, 2432, 2612, 3040, 3265, 3664, 4351, 4580, 5224, 6080, 6530, 7328, 8702, 9160, 10448, 12160, 12407, 13060, 14656, 17404, 18320, 20896, 21755, 24814, 26120, 29312, 34808, 36640, 41792, 43510, 49628, 52240, 62035, 69616, 73280, 83584, 87020, 99256, 104480, 124070, 139232, 146560, 149537, 174040, 198512, 208960, 248140, 278464, 299074, 348080, 397024, 417920, 496280, 556928, 598148, 696160, 747685, 794048, 992560, 1196296, 1392320, 1495370, 1588096, 1985120, 2392592, 2784640, 2841203, 2990740, 3970240, 4785184, 5682406, 5981480, 7940480, 9570368, 11364812, 11962960, 14206015, 19140736, 22729624, 23925920, 28412030, 45459248, 47851840, 56824060, 90918496, 95703680, 113648120, 181836992, 227296240, 363673984, 454592480, 909184960, 1818369920]

約数ペア:

[(1, 1818369920), (2, 909184960), (4, 454592480), (5, 363673984), (8, 227296240), (10, 181836992), (16, 113648120), (19, 95703680), (20, 90918496), (32, 56824060), (38, 47851840), (40, 45459248), (64, 28412030), (76, 23925920), (80, 22729624), (95, 19140736), (128, 14206015), (152, 11962960), (160, 11364812), (190, 9570368), (229, 7940480), (304, 5981480), (320, 5682406), (380, 4785184), (458, 3970240), (608, 2990740), (640, 2841203), (653, 2784640), (760, 2392592), (916, 1985120), (1145, 1588096), (1216, 1495370), (1306, 1392320), (1520, 1196296), (1832, 992560), (2290, 794048), (2432, 747685), (2612, 696160), (3040, 598148), (3265, 556928), (3664, 496280), (4351, 417920), (4580, 397024), (5224, 348080), (6080, 299074), (6530, 278464), (7328, 248140), (8702, 208960), (9160, 198512), (10448, 174040), (12160, 149537), (12407, 146560), (13060, 139232), (14656, 124070), (17404, 104480), (18320, 99256), (20896, 87020), (21755, 83584), (24814, 73280), (26120, 69616), (29312, 62035), (34808, 52240), (36640, 49628), (41792, 43510)]