427347620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 1120392000

約数和(自身を除く): 693044380

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 59, 70, 76, 95, 98, 118, 133, 140, 190, 196, 236, 245, 266, 295, 380, 389, 413, 490, 532, 590, 665, 778, 826, 931, 980, 1121, 1180, 1330, 1556, 1652, 1862, 1945, 2065, 2242, 2660, 2723, 2891, 3724, 3890, 4130, 4484, 4655, 5446, 5605, 5782, 7391, 7780, 7847, 8260, 9310, 10892, 11210, 11564, 13615, 14455, 14782, 15694, 18620, 19061, 22420, 22951, 27230, 28910, 29564, 31388, 36955, 38122, 39235, 45902, 51737, 54460, 54929, 57820, 73910, 76244, 78470, 91804, 95305, 103474, 109858, 114755, 147820, 156940, 160657, 190610, 206948, 219716, 229510, 258685, 274645, 321314, 362159, 381220, 436069, 459020, 517370, 549290, 642628, 724318, 803285, 872138, 1034740, 1098580, 1124599, 1448636, 1606570, 1744276, 1810795, 2180345, 2249198, 3052483, 3213140, 3621590, 4360690, 4498396, 5622995, 6104966, 7243180, 8721380, 11245990, 12209932, 15262415, 21367381, 22491980, 30524830, 42734762, 61049660, 85469524, 106836905, 213673810, 427347620]

約数ペア:

[(1, 427347620), (2, 213673810), (4, 106836905), (5, 85469524), (7, 61049660), (10, 42734762), (14, 30524830), (19, 22491980), (20, 21367381), (28, 15262415), (35, 12209932), (38, 11245990), (49, 8721380), (59, 7243180), (70, 6104966), (76, 5622995), (95, 4498396), (98, 4360690), (118, 3621590), (133, 3213140), (140, 3052483), (190, 2249198), (196, 2180345), (236, 1810795), (245, 1744276), (266, 1606570), (295, 1448636), (380, 1124599), (389, 1098580), (413, 1034740), (490, 872138), (532, 803285), (590, 724318), (665, 642628), (778, 549290), (826, 517370), (931, 459020), (980, 436069), (1121, 381220), (1180, 362159), (1330, 321314), (1556, 274645), (1652, 258685), (1862, 229510), (1945, 219716), (2065, 206948), (2242, 190610), (2660, 160657), (2723, 156940), (2891, 147820), (3724, 114755), (3890, 109858), (4130, 103474), (4484, 95305), (4655, 91804), (5446, 78470), (5605, 76244), (5782, 73910), (7391, 57820), (7780, 54929), (7847, 54460), (8260, 51737), (9310, 45902), (10892, 39235), (11210, 38122), (11564, 36955), (13615, 31388), (14455, 29564), (14782, 28910), (15694, 27230), (18620, 22951), (19061, 22420)]