400283640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19507}}^1$

素因数の和:19546

約数の個数: 128

約数和(自身を含む): 1404576000

約数和(自身を除く): 1004292360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 10260, 19507, 20520, 39014, 58521, 78028, 97535, 117042, 156056, 175563, 195070, 234084, 292605, 351126, 370633, 390140, 468168, 526689, 585210, 702252, 741266, 780280, 877815, 1053378, 1111899, 1170420, 1404504, 1482532, 1755630, 1853165, 2106756, 2223798, 2340840, 2633445, 2965064, 3335697, 3511260, 3706330, 4213512, 4447596, 5266890, 5559495, 6671394, 7022520, 7412660, 8895192, 10007091, 10533780, 11118990, 13342788, 14825320, 16678485, 20014182, 21067560, 22237980, 26685576, 33356970, 40028364, 44475960, 50035455, 66713940, 80056728, 100070910, 133427880, 200141820, 400283640]

約数ペア:

[(1, 400283640), (2, 200141820), (3, 133427880), (4, 100070910), (5, 80056728), (6, 66713940), (8, 50035455), (9, 44475960), (10, 40028364), (12, 33356970), (15, 26685576), (18, 22237980), (19, 21067560), (20, 20014182), (24, 16678485), (27, 14825320), (30, 13342788), (36, 11118990), (38, 10533780), (40, 10007091), (45, 8895192), (54, 7412660), (57, 7022520), (60, 6671394), (72, 5559495), (76, 5266890), (90, 4447596), (95, 4213512), (108, 3706330), (114, 3511260), (120, 3335697), (135, 2965064), (152, 2633445), (171, 2340840), (180, 2223798), (190, 2106756), (216, 1853165), (228, 1755630), (270, 1482532), (285, 1404504), (342, 1170420), (360, 1111899), (380, 1053378), (456, 877815), (513, 780280), (540, 741266), (570, 702252), (684, 585210), (760, 526689), (855, 468168), (1026, 390140), (1080, 370633), (1140, 351126), (1368, 292605), (1710, 234084), (2052, 195070), (2280, 175563), (2565, 156056), (3420, 117042), (4104, 97535), (5130, 78028), (6840, 58521), (10260, 39014), (19507, 20520)]