12802672640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1301}}^1$

素因数の和:1390

約数の個数: 144

約数和(自身を含む): 31766209020

約数和(自身を除く): 18963536380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 961, 992, 1024, 1240, 1280, 1301, 1922, 1984, 2048, 2480, 2560, 2602, 3844, 3968, 4805, 4960, 5120, 5204, 6505, 7688, 7936, 9610, 9920, 10240, 10408, 13010, 15376, 15872, 19220, 19840, 20816, 26020, 30752, 31744, 38440, 39680, 40331, 41632, 52040, 61504, 63488, 76880, 79360, 80662, 83264, 104080, 123008, 153760, 158720, 161324, 166528, 201655, 208160, 246016, 307520, 317440, 322648, 333056, 403310, 416320, 492032, 615040, 645296, 666112, 806620, 832640, 984064, 1230080, 1250261, 1290592, 1332224, 1613240, 1665280, 1968128, 2460160, 2500522, 2581184, 2664448, 3226480, 3330560, 4920320, 5001044, 5162368, 6251305, 6452960, 6661120, 9840640, 10002088, 10324736, 12502610, 12905920, 13322240, 20004176, 20649472, 25005220, 25811840, 40008352, 41298944, 50010440, 51623680, 80016704, 82597888, 100020880, 103247360, 160033408, 200041760, 206494720, 320066816, 400083520, 412989440, 640133632, 800167040, 1280267264, 1600334080, 2560534528, 3200668160, 6401336320, 12802672640]

約数ペア:

[(1, 12802672640), (2, 6401336320), (4, 3200668160), (5, 2560534528), (8, 1600334080), (10, 1280267264), (16, 800167040), (20, 640133632), (31, 412989440), (32, 400083520), (40, 320066816), (62, 206494720), (64, 200041760), (80, 160033408), (124, 103247360), (128, 100020880), (155, 82597888), (160, 80016704), (248, 51623680), (256, 50010440), (310, 41298944), (320, 40008352), (496, 25811840), (512, 25005220), (620, 20649472), (640, 20004176), (961, 13322240), (992, 12905920), (1024, 12502610), (1240, 10324736), (1280, 10002088), (1301, 9840640), (1922, 6661120), (1984, 6452960), (2048, 6251305), (2480, 5162368), (2560, 5001044), (2602, 4920320), (3844, 3330560), (3968, 3226480), (4805, 2664448), (4960, 2581184), (5120, 2500522), (5204, 2460160), (6505, 1968128), (7688, 1665280), (7936, 1613240), (9610, 1332224), (9920, 1290592), (10240, 1250261), (10408, 1230080), (13010, 984064), (15376, 832640), (15872, 806620), (19220, 666112), (19840, 645296), (20816, 615040), (26020, 492032), (30752, 416320), (31744, 403310), (38440, 333056), (39680, 322648), (40331, 317440), (41632, 307520), (52040, 246016), (61504, 208160), (63488, 201655), (76880, 166528), (79360, 161324), (80662, 158720), (83264, 153760), (104080, 123008)]