438061720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{1013}}^1$

素因数の和:1612

約数の個数: 64

約数和(自身を含む): 1040364000

約数和(自身を除く): 602302280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 569, 760, 1013, 1138, 2026, 2276, 2845, 4052, 4552, 5065, 5690, 8104, 10130, 10811, 11380, 19247, 20260, 21622, 22760, 38494, 40520, 43244, 54055, 76988, 86488, 96235, 108110, 153976, 192470, 216220, 384940, 432440, 576397, 769880, 1152794, 2305588, 2881985, 4611176, 5763970, 10951543, 11527940, 21903086, 23055880, 43806172, 54757715, 87612344, 109515430, 219030860, 438061720]

約数ペア:

[(1, 438061720), (2, 219030860), (4, 109515430), (5, 87612344), (8, 54757715), (10, 43806172), (19, 23055880), (20, 21903086), (38, 11527940), (40, 10951543), (76, 5763970), (95, 4611176), (152, 2881985), (190, 2305588), (380, 1152794), (569, 769880), (760, 576397), (1013, 432440), (1138, 384940), (2026, 216220), (2276, 192470), (2845, 153976), (4052, 108110), (4552, 96235), (5065, 86488), (5690, 76988), (8104, 54055), (10130, 43244), (10811, 40520), (11380, 38494), (19247, 22760), (20260, 21622)]