7978480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 20311200

約数和(自身を除く): 12332720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 181, 190, 232, 290, 304, 362, 380, 464, 551, 580, 724, 760, 905, 1102, 1160, 1448, 1520, 1810, 2204, 2320, 2755, 2896, 3439, 3620, 4408, 5249, 5510, 6878, 7240, 8816, 10498, 11020, 13756, 14480, 17195, 20996, 22040, 26245, 27512, 34390, 41992, 44080, 52490, 55024, 68780, 83984, 99731, 104980, 137560, 199462, 209960, 275120, 398924, 419920, 498655, 797848, 997310, 1595696, 1994620, 3989240, 7978480]

約数ペア:

[(1, 7978480), (2, 3989240), (4, 1994620), (5, 1595696), (8, 997310), (10, 797848), (16, 498655), (19, 419920), (20, 398924), (29, 275120), (38, 209960), (40, 199462), (58, 137560), (76, 104980), (80, 99731), (95, 83984), (116, 68780), (145, 55024), (152, 52490), (181, 44080), (190, 41992), (232, 34390), (290, 27512), (304, 26245), (362, 22040), (380, 20996), (464, 17195), (551, 14480), (580, 13756), (724, 11020), (760, 10498), (905, 8816), (1102, 7240), (1160, 6878), (1448, 5510), (1520, 5249), (1810, 4408), (2204, 3620), (2320, 3439), (2755, 2896)]