19298120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 26321080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 197, 248, 310, 316, 394, 395, 620, 632, 788, 790, 985, 1240, 1576, 1580, 1970, 2449, 3160, 3940, 4898, 6107, 7880, 9796, 12214, 12245, 15563, 19592, 24428, 24490, 30535, 31126, 48856, 48980, 61070, 62252, 77815, 97960, 122140, 124504, 155630, 244280, 311260, 482453, 622520, 964906, 1929812, 2412265, 3859624, 4824530, 9649060, 19298120]

約数ペア:

[(1, 19298120), (2, 9649060), (4, 4824530), (5, 3859624), (8, 2412265), (10, 1929812), (20, 964906), (31, 622520), (40, 482453), (62, 311260), (79, 244280), (124, 155630), (155, 124504), (158, 122140), (197, 97960), (248, 77815), (310, 62252), (316, 61070), (394, 48980), (395, 48856), (620, 31126), (632, 30535), (788, 24490), (790, 24428), (985, 19592), (1240, 15563), (1576, 12245), (1580, 12214), (1970, 9796), (2449, 7880), (3160, 6107), (3940, 4898)]