18115440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:327

約数の個数: 160

約数和(自身を含む): 65995776

約数和(自身を除く): 47880336

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 41, 42, 48, 56, 60, 70, 80, 82, 84, 105, 112, 120, 123, 140, 164, 168, 205, 210, 240, 246, 263, 280, 287, 328, 336, 410, 420, 492, 526, 560, 574, 615, 656, 789, 820, 840, 861, 984, 1052, 1148, 1230, 1315, 1435, 1578, 1640, 1680, 1722, 1841, 1968, 2104, 2296, 2460, 2630, 2870, 3156, 3280, 3444, 3682, 3945, 4208, 4305, 4592, 4920, 5260, 5523, 5740, 6312, 6888, 7364, 7890, 8610, 9205, 9840, 10520, 10783, 11046, 11480, 12624, 13776, 14728, 15780, 17220, 18410, 21040, 21566, 22092, 22960, 27615, 29456, 31560, 32349, 34440, 36820, 43132, 44184, 53915, 55230, 63120, 64698, 68880, 73640, 75481, 86264, 88368, 107830, 110460, 129396, 147280, 150962, 161745, 172528, 215660, 220920, 226443, 258792, 301924, 323490, 377405, 431320, 441840, 452886, 517584, 603848, 646980, 754810, 862640, 905772, 1132215, 1207696, 1293960, 1509620, 1811544, 2264430, 2587920, 3019240, 3623088, 4528860, 6038480, 9057720, 18115440]

約数ペア:

[(1, 18115440), (2, 9057720), (3, 6038480), (4, 4528860), (5, 3623088), (6, 3019240), (7, 2587920), (8, 2264430), (10, 1811544), (12, 1509620), (14, 1293960), (15, 1207696), (16, 1132215), (20, 905772), (21, 862640), (24, 754810), (28, 646980), (30, 603848), (35, 517584), (40, 452886), (41, 441840), (42, 431320), (48, 377405), (56, 323490), (60, 301924), (70, 258792), (80, 226443), (82, 220920), (84, 215660), (105, 172528), (112, 161745), (120, 150962), (123, 147280), (140, 129396), (164, 110460), (168, 107830), (205, 88368), (210, 86264), (240, 75481), (246, 73640), (263, 68880), (280, 64698), (287, 63120), (328, 55230), (336, 53915), (410, 44184), (420, 43132), (492, 36820), (526, 34440), (560, 32349), (574, 31560), (615, 29456), (656, 27615), (789, 22960), (820, 22092), (840, 21566), (861, 21040), (984, 18410), (1052, 17220), (1148, 15780), (1230, 14728), (1315, 13776), (1435, 12624), (1578, 11480), (1640, 11046), (1680, 10783), (1722, 10520), (1841, 9840), (1968, 9205), (2104, 8610), (2296, 7890), (2460, 7364), (2630, 6888), (2870, 6312), (3156, 5740), (3280, 5523), (3444, 5260), (3682, 4920), (3945, 4592), (4208, 4305)]