386721280

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:508

約数の個数: 160

約数和(自身を含む): 1046504448

約数和(自身を除く): 659783168

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 256, 310, 320, 341, 352, 440, 443, 496, 512, 620, 640, 682, 704, 880, 886, 992, 1240, 1280, 1364, 1408, 1705, 1760, 1772, 1984, 2215, 2480, 2560, 2728, 2816, 3410, 3520, 3544, 3968, 4430, 4873, 4960, 5456, 5632, 6820, 7040, 7088, 7936, 8860, 9746, 9920, 10912, 13640, 13733, 14080, 14176, 15872, 17720, 19492, 19840, 21824, 24365, 27280, 27466, 28160, 28352, 35440, 38984, 39680, 43648, 48730, 54560, 54932, 56704, 68665, 70880, 77968, 79360, 87296, 97460, 109120, 109864, 113408, 137330, 141760, 151063, 155936, 174592, 194920, 218240, 219728, 226816, 274660, 283520, 302126, 311872, 389840, 436480, 439456, 549320, 567040, 604252, 623744, 755315, 779680, 872960, 878912, 1098640, 1134080, 1208504, 1247488, 1510630, 1559360, 1757824, 2197280, 2417008, 2494976, 3021260, 3118720, 3515648, 4394560, 4834016, 6042520, 6237440, 7031296, 8789120, 9668032, 12085040, 12474880, 17578240, 19336064, 24170080, 35156480, 38672128, 48340160, 77344256, 96680320, 193360640, 386721280]

約数ペア:

[(1, 386721280), (2, 193360640), (4, 96680320), (5, 77344256), (8, 48340160), (10, 38672128), (11, 35156480), (16, 24170080), (20, 19336064), (22, 17578240), (31, 12474880), (32, 12085040), (40, 9668032), (44, 8789120), (55, 7031296), (62, 6237440), (64, 6042520), (80, 4834016), (88, 4394560), (110, 3515648), (124, 3118720), (128, 3021260), (155, 2494976), (160, 2417008), (176, 2197280), (220, 1757824), (248, 1559360), (256, 1510630), (310, 1247488), (320, 1208504), (341, 1134080), (352, 1098640), (440, 878912), (443, 872960), (496, 779680), (512, 755315), (620, 623744), (640, 604252), (682, 567040), (704, 549320), (880, 439456), (886, 436480), (992, 389840), (1240, 311872), (1280, 302126), (1364, 283520), (1408, 274660), (1705, 226816), (1760, 219728), (1772, 218240), (1984, 194920), (2215, 174592), (2480, 155936), (2560, 151063), (2728, 141760), (2816, 137330), (3410, 113408), (3520, 109864), (3544, 109120), (3968, 97460), (4430, 87296), (4873, 79360), (4960, 77968), (5456, 70880), (5632, 68665), (6820, 56704), (7040, 54932), (7088, 54560), (7936, 48730), (8860, 43648), (9746, 39680), (9920, 38984), (10912, 35440), (13640, 28352), (13733, 28160), (14080, 27466), (14176, 27280), (15872, 24365), (17720, 21824), (19492, 19840)]