256189920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4013}}^1$

素因数の和:4057

約数の個数: 192

約数和(自身を含む): 971066880

約数和(自身を除く): 714876960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 210, 224, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 480, 532, 560, 570, 608, 665, 672, 760, 798, 840, 912, 1064, 1120, 1140, 1330, 1520, 1596, 1680, 1824, 1995, 2128, 2280, 2660, 3040, 3192, 3360, 3990, 4013, 4256, 4560, 5320, 6384, 7980, 8026, 9120, 10640, 12039, 12768, 15960, 16052, 20065, 21280, 24078, 28091, 31920, 32104, 40130, 48156, 56182, 60195, 63840, 64208, 76247, 80260, 84273, 96312, 112364, 120390, 128416, 140455, 152494, 160520, 168546, 192624, 224728, 228741, 240780, 280910, 304988, 321040, 337092, 381235, 385248, 421365, 449456, 457482, 481560, 533729, 561820, 609976, 642080, 674184, 762470, 842730, 898912, 914964, 963120, 1067458, 1123640, 1143705, 1219952, 1348368, 1524940, 1601187, 1685460, 1829928, 1926240, 2134916, 2247280, 2287410, 2439904, 2668645, 2696736, 3049880, 3202374, 3370920, 3659856, 4269832, 4494560, 4574820, 5337290, 6099760, 6404748, 6741840, 7319712, 8005935, 8539664, 9149640, 10674580, 12199520, 12809496, 13483680, 16011870, 17079328, 18299280, 21349160, 25618992, 32023740, 36598560, 42698320, 51237984, 64047480, 85396640, 128094960, 256189920]

約数ペア:

[(1, 256189920), (2, 128094960), (3, 85396640), (4, 64047480), (5, 51237984), (6, 42698320), (7, 36598560), (8, 32023740), (10, 25618992), (12, 21349160), (14, 18299280), (15, 17079328), (16, 16011870), (19, 13483680), (20, 12809496), (21, 12199520), (24, 10674580), (28, 9149640), (30, 8539664), (32, 8005935), (35, 7319712), (38, 6741840), (40, 6404748), (42, 6099760), (48, 5337290), (56, 4574820), (57, 4494560), (60, 4269832), (70, 3659856), (76, 3370920), (80, 3202374), (84, 3049880), (95, 2696736), (96, 2668645), (105, 2439904), (112, 2287410), (114, 2247280), (120, 2134916), (133, 1926240), (140, 1829928), (152, 1685460), (160, 1601187), (168, 1524940), (190, 1348368), (210, 1219952), (224, 1143705), (228, 1123640), (240, 1067458), (266, 963120), (280, 914964), (285, 898912), (304, 842730), (336, 762470), (380, 674184), (399, 642080), (420, 609976), (456, 561820), (480, 533729), (532, 481560), (560, 457482), (570, 449456), (608, 421365), (665, 385248), (672, 381235), (760, 337092), (798, 321040), (840, 304988), (912, 280910), (1064, 240780), (1120, 228741), (1140, 224728), (1330, 192624), (1520, 168546), (1596, 160520), (1680, 152494), (1824, 140455), (1995, 128416), (2128, 120390), (2280, 112364), (2660, 96312), (3040, 84273), (3192, 80260), (3360, 76247), (3990, 64208), (4013, 63840), (4256, 60195), (4560, 56182), (5320, 48156), (6384, 40130), (7980, 32104), (8026, 31920), (9120, 28091), (10640, 24078), (12039, 21280), (12768, 20065), (15960, 16052)]