428385440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{541}}^1$

素因数の和:671

約数の個数: 144

約数和(自身を含む): 1191149064

約数和(自身を除く): 762763624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 101, 112, 140, 160, 196, 202, 224, 245, 280, 392, 404, 490, 505, 541, 560, 707, 784, 808, 980, 1010, 1082, 1120, 1414, 1568, 1616, 1960, 2020, 2164, 2705, 2828, 3232, 3535, 3787, 3920, 4040, 4328, 4949, 5410, 5656, 7070, 7574, 7840, 8080, 8656, 9898, 10820, 11312, 14140, 15148, 16160, 17312, 18935, 19796, 21640, 22624, 24745, 26509, 28280, 30296, 37870, 39592, 43280, 49490, 53018, 54641, 56560, 60592, 75740, 79184, 86560, 98980, 106036, 109282, 113120, 121184, 132545, 151480, 158368, 197960, 212072, 218564, 265090, 273205, 302960, 382487, 395920, 424144, 437128, 530180, 546410, 605920, 764974, 791840, 848288, 874256, 1060360, 1092820, 1529948, 1748512, 1912435, 2120720, 2185640, 2677409, 3059896, 3824870, 4241440, 4371280, 5354818, 6119792, 7649740, 8742560, 10709636, 12239584, 13387045, 15299480, 21419272, 26774090, 30598960, 42838544, 53548180, 61197920, 85677088, 107096360, 214192720, 428385440]

約数ペア:

[(1, 428385440), (2, 214192720), (4, 107096360), (5, 85677088), (7, 61197920), (8, 53548180), (10, 42838544), (14, 30598960), (16, 26774090), (20, 21419272), (28, 15299480), (32, 13387045), (35, 12239584), (40, 10709636), (49, 8742560), (56, 7649740), (70, 6119792), (80, 5354818), (98, 4371280), (101, 4241440), (112, 3824870), (140, 3059896), (160, 2677409), (196, 2185640), (202, 2120720), (224, 1912435), (245, 1748512), (280, 1529948), (392, 1092820), (404, 1060360), (490, 874256), (505, 848288), (541, 791840), (560, 764974), (707, 605920), (784, 546410), (808, 530180), (980, 437128), (1010, 424144), (1082, 395920), (1120, 382487), (1414, 302960), (1568, 273205), (1616, 265090), (1960, 218564), (2020, 212072), (2164, 197960), (2705, 158368), (2828, 151480), (3232, 132545), (3535, 121184), (3787, 113120), (3920, 109282), (4040, 106036), (4328, 98980), (4949, 86560), (5410, 79184), (5656, 75740), (7070, 60592), (7574, 56560), (7840, 54641), (8080, 53018), (8656, 49490), (9898, 43280), (10820, 39592), (11312, 37870), (14140, 30296), (15148, 28280), (16160, 26509), (17312, 24745), (18935, 22624), (19796, 21640)]