74428940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{653}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 161511840

約数和(自身を除く): 87082900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 139, 164, 205, 278, 410, 556, 653, 695, 820, 1306, 1390, 2612, 2780, 3265, 5699, 6530, 11398, 13060, 22796, 26773, 28495, 53546, 56990, 90767, 107092, 113980, 133865, 181534, 267730, 363068, 453835, 535460, 907670, 1815340, 3721447, 7442894, 14885788, 18607235, 37214470, 74428940]

約数ペア:

[(1, 74428940), (2, 37214470), (4, 18607235), (5, 14885788), (10, 7442894), (20, 3721447), (41, 1815340), (82, 907670), (139, 535460), (164, 453835), (205, 363068), (278, 267730), (410, 181534), (556, 133865), (653, 113980), (695, 107092), (820, 90767), (1306, 56990), (1390, 53546), (2612, 28495), (2780, 26773), (3265, 22796), (5699, 13060), (6530, 11398)]