217715680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:841

約数の個数: 192

約数和(自身を含む): 667215360

約数和(自身を除く): 449499680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 32, 35, 38, 40, 52, 56, 65, 70, 76, 80, 91, 95, 104, 112, 130, 133, 140, 152, 160, 182, 190, 208, 224, 247, 260, 266, 280, 304, 364, 380, 416, 455, 494, 520, 532, 560, 608, 665, 728, 760, 787, 910, 988, 1040, 1064, 1120, 1235, 1330, 1456, 1520, 1574, 1729, 1820, 1976, 2080, 2128, 2470, 2660, 2912, 3040, 3148, 3458, 3640, 3935, 3952, 4256, 4940, 5320, 5509, 6296, 6916, 7280, 7870, 7904, 8645, 9880, 10231, 10640, 11018, 12592, 13832, 14560, 14953, 15740, 17290, 19760, 20462, 21280, 22036, 25184, 27545, 27664, 29906, 31480, 34580, 39520, 40924, 44072, 51155, 55090, 55328, 59812, 62960, 69160, 71617, 74765, 81848, 88144, 102310, 104671, 110180, 119624, 125920, 138320, 143234, 149530, 163696, 176288, 194389, 204620, 209342, 220360, 239248, 276640, 286468, 299060, 327392, 358085, 388778, 409240, 418684, 440720, 478496, 523355, 572936, 598120, 716170, 777556, 818480, 837368, 881440, 971945, 1046710, 1145872, 1196240, 1360723, 1432340, 1555112, 1636960, 1674736, 1943890, 2093420, 2291744, 2392480, 2721446, 2864680, 3110224, 3349472, 3887780, 4186840, 5442892, 5729360, 6220448, 6803615, 7775560, 8373680, 10885784, 11458720, 13607230, 15551120, 16747360, 21771568, 27214460, 31102240, 43543136, 54428920, 108857840, 217715680]

約数ペア:

[(1, 217715680), (2, 108857840), (4, 54428920), (5, 43543136), (7, 31102240), (8, 27214460), (10, 21771568), (13, 16747360), (14, 15551120), (16, 13607230), (19, 11458720), (20, 10885784), (26, 8373680), (28, 7775560), (32, 6803615), (35, 6220448), (38, 5729360), (40, 5442892), (52, 4186840), (56, 3887780), (65, 3349472), (70, 3110224), (76, 2864680), (80, 2721446), (91, 2392480), (95, 2291744), (104, 2093420), (112, 1943890), (130, 1674736), (133, 1636960), (140, 1555112), (152, 1432340), (160, 1360723), (182, 1196240), (190, 1145872), (208, 1046710), (224, 971945), (247, 881440), (260, 837368), (266, 818480), (280, 777556), (304, 716170), (364, 598120), (380, 572936), (416, 523355), (455, 478496), (494, 440720), (520, 418684), (532, 409240), (560, 388778), (608, 358085), (665, 327392), (728, 299060), (760, 286468), (787, 276640), (910, 239248), (988, 220360), (1040, 209342), (1064, 204620), (1120, 194389), (1235, 176288), (1330, 163696), (1456, 149530), (1520, 143234), (1574, 138320), (1729, 125920), (1820, 119624), (1976, 110180), (2080, 104671), (2128, 102310), (2470, 88144), (2660, 81848), (2912, 74765), (3040, 71617), (3148, 69160), (3458, 62960), (3640, 59812), (3935, 55328), (3952, 55090), (4256, 51155), (4940, 44072), (5320, 40924), (5509, 39520), (6296, 34580), (6916, 31480), (7280, 29906), (7870, 27664), (7904, 27545), (8645, 25184), (9880, 22036), (10231, 21280), (10640, 20462), (11018, 19760), (12592, 17290), (13832, 15740), (14560, 14953)]