9998940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 34473600

約数和(自身を除く): 24474660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 179, 190, 196, 210, 228, 245, 266, 285, 294, 358, 380, 399, 420, 490, 532, 537, 570, 588, 665, 716, 735, 798, 895, 931, 980, 1074, 1140, 1253, 1330, 1470, 1596, 1790, 1862, 1995, 2148, 2506, 2660, 2685, 2793, 2940, 3401, 3580, 3724, 3759, 3990, 4655, 5012, 5370, 5586, 6265, 6802, 7518, 7980, 8771, 9310, 10203, 10740, 11172, 12530, 13604, 13965, 15036, 17005, 17542, 18620, 18795, 20406, 23807, 25060, 26313, 27930, 34010, 35084, 37590, 40812, 43855, 47614, 51015, 52626, 55860, 68020, 71421, 75180, 87710, 95228, 102030, 105252, 119035, 131565, 142842, 166649, 175420, 204060, 238070, 263130, 285684, 333298, 357105, 476140, 499947, 526260, 666596, 714210, 833245, 999894, 1428420, 1666490, 1999788, 2499735, 3332980, 4999470, 9998940]

約数ペア:

[(1, 9998940), (2, 4999470), (3, 3332980), (4, 2499735), (5, 1999788), (6, 1666490), (7, 1428420), (10, 999894), (12, 833245), (14, 714210), (15, 666596), (19, 526260), (20, 499947), (21, 476140), (28, 357105), (30, 333298), (35, 285684), (38, 263130), (42, 238070), (49, 204060), (57, 175420), (60, 166649), (70, 142842), (76, 131565), (84, 119035), (95, 105252), (98, 102030), (105, 95228), (114, 87710), (133, 75180), (140, 71421), (147, 68020), (179, 55860), (190, 52626), (196, 51015), (210, 47614), (228, 43855), (245, 40812), (266, 37590), (285, 35084), (294, 34010), (358, 27930), (380, 26313), (399, 25060), (420, 23807), (490, 20406), (532, 18795), (537, 18620), (570, 17542), (588, 17005), (665, 15036), (716, 13965), (735, 13604), (798, 12530), (895, 11172), (931, 10740), (980, 10203), (1074, 9310), (1140, 8771), (1253, 7980), (1330, 7518), (1470, 6802), (1596, 6265), (1790, 5586), (1862, 5370), (1995, 5012), (2148, 4655), (2506, 3990), (2660, 3759), (2685, 3724), (2793, 3580), (2940, 3401)]