128122380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22961}}^1$

素因数の和:23007

約数の個数: 72

約数和(自身を含む): 401192064

約数和(自身を除く): 273069684

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 22961, 45922, 68883, 91844, 114805, 137766, 206649, 229610, 275532, 344415, 413298, 459220, 688830, 711791, 826596, 1033245, 1377660, 1423582, 2066490, 2135373, 2847164, 3558955, 4132980, 4270746, 6406119, 7117910, 8541492, 10676865, 12812238, 14235820, 21353730, 25624476, 32030595, 42707460, 64061190, 128122380]

約数ペア:

[(1, 128122380), (2, 64061190), (3, 42707460), (4, 32030595), (5, 25624476), (6, 21353730), (9, 14235820), (10, 12812238), (12, 10676865), (15, 8541492), (18, 7117910), (20, 6406119), (30, 4270746), (31, 4132980), (36, 3558955), (45, 2847164), (60, 2135373), (62, 2066490), (90, 1423582), (93, 1377660), (124, 1033245), (155, 826596), (180, 711791), (186, 688830), (279, 459220), (310, 413298), (372, 344415), (465, 275532), (558, 229610), (620, 206649), (930, 137766), (1116, 114805), (1395, 91844), (1860, 68883), (2790, 45922), (5580, 22961)]