1270796380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:672

約数の個数: 144

約数和(自身を含む): 3297974400

約数和(自身を除く): 2027178020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 139, 140, 190, 196, 245, 266, 278, 380, 490, 491, 532, 556, 665, 695, 931, 973, 980, 982, 1330, 1390, 1862, 1946, 1964, 2455, 2641, 2660, 2780, 3437, 3724, 3892, 4655, 4865, 4910, 5282, 6811, 6874, 9310, 9329, 9730, 9820, 10564, 13205, 13622, 13748, 17185, 18487, 18620, 18658, 19460, 24059, 26410, 27244, 34055, 34370, 36974, 37316, 46645, 48118, 52820, 65303, 68110, 68249, 68740, 73948, 92435, 93290, 96236, 120295, 129409, 130606, 136220, 136498, 184870, 186580, 240590, 258818, 261212, 272996, 326515, 341245, 369740, 457121, 477743, 481180, 517636, 647045, 653030, 682490, 914242, 955486, 1294090, 1296731, 1306060, 1364980, 1828484, 1910972, 2285605, 2388715, 2588180, 2593462, 3344201, 4571210, 4777430, 5186924, 6483655, 6688402, 9077117, 9142420, 9554860, 12967310, 13376804, 16721005, 18154234, 25934620, 33442010, 36308468, 45385585, 63539819, 66884020, 90771170, 127079638, 181542340, 254159276, 317699095, 635398190, 1270796380]

約数ペア:

[(1, 1270796380), (2, 635398190), (4, 317699095), (5, 254159276), (7, 181542340), (10, 127079638), (14, 90771170), (19, 66884020), (20, 63539819), (28, 45385585), (35, 36308468), (38, 33442010), (49, 25934620), (70, 18154234), (76, 16721005), (95, 13376804), (98, 12967310), (133, 9554860), (139, 9142420), (140, 9077117), (190, 6688402), (196, 6483655), (245, 5186924), (266, 4777430), (278, 4571210), (380, 3344201), (490, 2593462), (491, 2588180), (532, 2388715), (556, 2285605), (665, 1910972), (695, 1828484), (931, 1364980), (973, 1306060), (980, 1296731), (982, 1294090), (1330, 955486), (1390, 914242), (1862, 682490), (1946, 653030), (1964, 647045), (2455, 517636), (2641, 481180), (2660, 477743), (2780, 457121), (3437, 369740), (3724, 341245), (3892, 326515), (4655, 272996), (4865, 261212), (4910, 258818), (5282, 240590), (6811, 186580), (6874, 184870), (9310, 136498), (9329, 136220), (9730, 130606), (9820, 129409), (10564, 120295), (13205, 96236), (13622, 93290), (13748, 92435), (17185, 73948), (18487, 68740), (18620, 68249), (18658, 68110), (19460, 65303), (24059, 52820), (26410, 48118), (27244, 46645), (34055, 37316), (34370, 36974)]