16954980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 144

約数和(自身を含む): 56689920

約数和(自身を除く): 39734940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 73, 79, 84, 98, 105, 140, 146, 147, 158, 196, 210, 219, 237, 245, 292, 294, 316, 365, 395, 420, 438, 474, 490, 511, 553, 588, 730, 735, 790, 876, 948, 980, 1022, 1095, 1106, 1185, 1460, 1470, 1533, 1580, 1659, 2044, 2190, 2212, 2370, 2555, 2765, 2940, 3066, 3318, 3577, 3871, 4380, 4740, 5110, 5530, 5767, 6132, 6636, 7154, 7665, 7742, 8295, 10220, 10731, 11060, 11534, 11613, 14308, 15330, 15484, 16590, 17301, 17885, 19355, 21462, 23068, 23226, 28835, 30660, 33180, 34602, 35770, 38710, 40369, 42924, 46452, 53655, 57670, 58065, 69204, 71540, 77420, 80738, 86505, 107310, 115340, 116130, 121107, 161476, 173010, 201845, 214620, 232260, 242214, 282583, 346020, 403690, 484428, 565166, 605535, 807380, 847749, 1130332, 1211070, 1412915, 1695498, 2422140, 2825830, 3390996, 4238745, 5651660, 8477490, 16954980]

約数ペア:

[(1, 16954980), (2, 8477490), (3, 5651660), (4, 4238745), (5, 3390996), (6, 2825830), (7, 2422140), (10, 1695498), (12, 1412915), (14, 1211070), (15, 1130332), (20, 847749), (21, 807380), (28, 605535), (30, 565166), (35, 484428), (42, 403690), (49, 346020), (60, 282583), (70, 242214), (73, 232260), (79, 214620), (84, 201845), (98, 173010), (105, 161476), (140, 121107), (146, 116130), (147, 115340), (158, 107310), (196, 86505), (210, 80738), (219, 77420), (237, 71540), (245, 69204), (292, 58065), (294, 57670), (316, 53655), (365, 46452), (395, 42924), (420, 40369), (438, 38710), (474, 35770), (490, 34602), (511, 33180), (553, 30660), (588, 28835), (730, 23226), (735, 23068), (790, 21462), (876, 19355), (948, 17885), (980, 17301), (1022, 16590), (1095, 15484), (1106, 15330), (1185, 14308), (1460, 11613), (1470, 11534), (1533, 11060), (1580, 10731), (1659, 10220), (2044, 8295), (2190, 7742), (2212, 7665), (2370, 7154), (2555, 6636), (2765, 6132), (2940, 5767), (3066, 5530), (3318, 5110), (3577, 4740), (3871, 4380)]