2638440

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{349}}^1$

素因数の和:376

約数の個数: 128

約数和(自身を含む): 10080000

約数和(自身を除く): 7441560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 349, 360, 378, 420, 504, 540, 630, 698, 756, 840, 945, 1047, 1080, 1260, 1396, 1512, 1745, 1890, 2094, 2443, 2520, 2792, 3141, 3490, 3780, 4188, 4886, 5235, 6282, 6980, 7329, 7560, 8376, 9423, 9772, 10470, 12215, 12564, 13960, 14658, 15705, 18846, 19544, 20940, 21987, 24430, 25128, 29316, 31410, 36645, 37692, 41880, 43974, 47115, 48860, 58632, 62820, 65961, 73290, 75384, 87948, 94230, 97720, 109935, 125640, 131922, 146580, 175896, 188460, 219870, 263844, 293160, 329805, 376920, 439740, 527688, 659610, 879480, 1319220, 2638440]

約数ペア:

[(1, 2638440), (2, 1319220), (3, 879480), (4, 659610), (5, 527688), (6, 439740), (7, 376920), (8, 329805), (9, 293160), (10, 263844), (12, 219870), (14, 188460), (15, 175896), (18, 146580), (20, 131922), (21, 125640), (24, 109935), (27, 97720), (28, 94230), (30, 87948), (35, 75384), (36, 73290), (40, 65961), (42, 62820), (45, 58632), (54, 48860), (56, 47115), (60, 43974), (63, 41880), (70, 37692), (72, 36645), (84, 31410), (90, 29316), (105, 25128), (108, 24430), (120, 21987), (126, 20940), (135, 19544), (140, 18846), (168, 15705), (180, 14658), (189, 13960), (210, 12564), (216, 12215), (252, 10470), (270, 9772), (280, 9423), (315, 8376), (349, 7560), (360, 7329), (378, 6980), (420, 6282), (504, 5235), (540, 4886), (630, 4188), (698, 3780), (756, 3490), (840, 3141), (945, 2792), (1047, 2520), (1080, 2443), (1260, 2094), (1396, 1890), (1512, 1745)]