19721091840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{125261}}^1$

素因数の和:125326

約数の個数: 144

約数和(自身を含む): 64520953056

約数和(自身を除く): 44799861216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 256, 320, 328, 384, 410, 480, 492, 615, 640, 656, 768, 820, 960, 984, 1230, 1280, 1312, 1640, 1920, 1968, 2460, 2624, 3280, 3840, 3936, 4920, 5248, 6560, 7872, 9840, 10496, 13120, 15744, 19680, 26240, 31488, 39360, 52480, 78720, 125261, 157440, 250522, 375783, 501044, 626305, 751566, 1002088, 1252610, 1503132, 1878915, 2004176, 2505220, 3006264, 3757830, 4008352, 5010440, 5135701, 6012528, 7515660, 8016704, 10020880, 10271402, 12025056, 15031320, 15407103, 16033408, 20041760, 20542804, 24050112, 25678505, 30062640, 30814206, 32066816, 40083520, 41085608, 48100224, 51357010, 60125280, 61628412, 77035515, 80167040, 82171216, 96200448, 102714020, 120250560, 123256824, 154071030, 160334080, 164342432, 205428040, 240501120, 246513648, 308142060, 328684864, 410856080, 481002240, 493027296, 616284120, 657369728, 821712160, 986054592, 1232568240, 1314739456, 1643424320, 1972109184, 2465136480, 3286848640, 3944218368, 4930272960, 6573697280, 9860545920, 19721091840]

約数ペア:

[(1, 19721091840), (2, 9860545920), (3, 6573697280), (4, 4930272960), (5, 3944218368), (6, 3286848640), (8, 2465136480), (10, 1972109184), (12, 1643424320), (15, 1314739456), (16, 1232568240), (20, 986054592), (24, 821712160), (30, 657369728), (32, 616284120), (40, 493027296), (41, 481002240), (48, 410856080), (60, 328684864), (64, 308142060), (80, 246513648), (82, 240501120), (96, 205428040), (120, 164342432), (123, 160334080), (128, 154071030), (160, 123256824), (164, 120250560), (192, 102714020), (205, 96200448), (240, 82171216), (246, 80167040), (256, 77035515), (320, 61628412), (328, 60125280), (384, 51357010), (410, 48100224), (480, 41085608), (492, 40083520), (615, 32066816), (640, 30814206), (656, 30062640), (768, 25678505), (820, 24050112), (960, 20542804), (984, 20041760), (1230, 16033408), (1280, 15407103), (1312, 15031320), (1640, 12025056), (1920, 10271402), (1968, 10020880), (2460, 8016704), (2624, 7515660), (3280, 6012528), (3840, 5135701), (3936, 5010440), (4920, 4008352), (5248, 3757830), (6560, 3006264), (7872, 2505220), (9840, 2004176), (10496, 1878915), (13120, 1503132), (15744, 1252610), (19680, 1002088), (26240, 751566), (31488, 626305), (39360, 501044), (52480, 375783), (78720, 250522), (125261, 157440)]