7907900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 23331840

約数和(自身を除く): 15423940

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 44, 50, 52, 55, 65, 70, 77, 79, 91, 100, 110, 130, 140, 143, 154, 158, 175, 182, 220, 260, 275, 286, 308, 316, 325, 350, 364, 385, 395, 455, 550, 553, 572, 650, 700, 715, 770, 790, 869, 910, 1001, 1027, 1100, 1106, 1300, 1430, 1540, 1580, 1738, 1820, 1925, 1975, 2002, 2054, 2212, 2275, 2765, 2860, 3476, 3575, 3850, 3950, 4004, 4108, 4345, 4550, 5005, 5135, 5530, 6083, 7150, 7189, 7700, 7900, 8690, 9100, 10010, 10270, 11060, 11297, 12166, 13825, 14300, 14378, 17380, 20020, 20540, 21725, 22594, 24332, 25025, 25675, 27650, 28756, 30415, 35945, 43450, 45188, 50050, 51350, 55300, 56485, 60830, 71890, 79079, 86900, 100100, 102700, 112970, 121660, 143780, 152075, 158158, 179725, 225940, 282425, 304150, 316316, 359450, 395395, 564850, 608300, 718900, 790790, 1129700, 1581580, 1976975, 3953950, 7907900]

約数ペア:

[(1, 7907900), (2, 3953950), (4, 1976975), (5, 1581580), (7, 1129700), (10, 790790), (11, 718900), (13, 608300), (14, 564850), (20, 395395), (22, 359450), (25, 316316), (26, 304150), (28, 282425), (35, 225940), (44, 179725), (50, 158158), (52, 152075), (55, 143780), (65, 121660), (70, 112970), (77, 102700), (79, 100100), (91, 86900), (100, 79079), (110, 71890), (130, 60830), (140, 56485), (143, 55300), (154, 51350), (158, 50050), (175, 45188), (182, 43450), (220, 35945), (260, 30415), (275, 28756), (286, 27650), (308, 25675), (316, 25025), (325, 24332), (350, 22594), (364, 21725), (385, 20540), (395, 20020), (455, 17380), (550, 14378), (553, 14300), (572, 13825), (650, 12166), (700, 11297), (715, 11060), (770, 10270), (790, 10010), (869, 9100), (910, 8690), (1001, 7900), (1027, 7700), (1100, 7189), (1106, 7150), (1300, 6083), (1430, 5530), (1540, 5135), (1580, 5005), (1738, 4550), (1820, 4345), (1925, 4108), (1975, 4004), (2002, 3950), (2054, 3850), (2212, 3575), (2275, 3476), (2765, 2860)]