12881920

素因数分解:

$2^{12}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 104

約数和(自身を含む): 33615864

約数和(自身を除く): 20733944

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 64, 68, 74, 80, 85, 128, 136, 148, 160, 170, 185, 256, 272, 296, 320, 340, 370, 512, 544, 592, 629, 640, 680, 740, 1024, 1088, 1184, 1258, 1280, 1360, 1480, 2048, 2176, 2368, 2516, 2560, 2720, 2960, 3145, 4096, 4352, 4736, 5032, 5120, 5440, 5920, 6290, 8704, 9472, 10064, 10240, 10880, 11840, 12580, 17408, 18944, 20128, 20480, 21760, 23680, 25160, 34816, 37888, 40256, 43520, 47360, 50320, 69632, 75776, 80512, 87040, 94720, 100640, 151552, 161024, 174080, 189440, 201280, 322048, 348160, 378880, 402560, 644096, 757760, 805120, 1288192, 1610240, 2576384, 3220480, 6440960, 12881920]

約数ペア:

[(1, 12881920), (2, 6440960), (4, 3220480), (5, 2576384), (8, 1610240), (10, 1288192), (16, 805120), (17, 757760), (20, 644096), (32, 402560), (34, 378880), (37, 348160), (40, 322048), (64, 201280), (68, 189440), (74, 174080), (80, 161024), (85, 151552), (128, 100640), (136, 94720), (148, 87040), (160, 80512), (170, 75776), (185, 69632), (256, 50320), (272, 47360), (296, 43520), (320, 40256), (340, 37888), (370, 34816), (512, 25160), (544, 23680), (592, 21760), (629, 20480), (640, 20128), (680, 18944), (740, 17408), (1024, 12580), (1088, 11840), (1184, 10880), (1258, 10240), (1280, 10064), (1360, 9472), (1480, 8704), (2048, 6290), (2176, 5920), (2368, 5440), (2516, 5120), (2560, 5032), (2720, 4736), (2960, 4352), (3145, 4096)]