18777320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 27187480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 797, 1178, 1240, 1594, 2356, 2945, 3188, 3985, 4712, 5890, 6376, 7970, 11780, 15143, 15940, 23560, 24707, 30286, 31880, 49414, 60572, 75715, 98828, 121144, 123535, 151430, 197656, 247070, 302860, 469433, 494140, 605720, 938866, 988280, 1877732, 2347165, 3755464, 4694330, 9388660, 18777320]

約数ペア:

[(1, 18777320), (2, 9388660), (4, 4694330), (5, 3755464), (8, 2347165), (10, 1877732), (19, 988280), (20, 938866), (31, 605720), (38, 494140), (40, 469433), (62, 302860), (76, 247070), (95, 197656), (124, 151430), (152, 123535), (155, 121144), (190, 98828), (248, 75715), (310, 60572), (380, 49414), (589, 31880), (620, 30286), (760, 24707), (797, 23560), (1178, 15940), (1240, 15143), (1594, 11780), (2356, 7970), (2945, 6376), (3188, 5890), (3985, 4712)]