19438140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 61891200

約数和(自身を除く): 42453060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 59, 60, 68, 76, 85, 95, 102, 114, 118, 170, 177, 190, 204, 228, 236, 255, 285, 289, 295, 323, 340, 354, 380, 510, 570, 578, 590, 646, 708, 867, 885, 969, 1003, 1020, 1121, 1140, 1156, 1180, 1292, 1445, 1615, 1734, 1770, 1938, 2006, 2242, 2890, 3009, 3230, 3363, 3468, 3540, 3876, 4012, 4335, 4484, 4845, 5015, 5491, 5605, 5780, 6018, 6460, 6726, 8670, 9690, 10030, 10982, 11210, 12036, 13452, 15045, 16473, 16815, 17051, 17340, 19057, 19380, 20060, 21964, 22420, 27455, 30090, 32946, 33630, 34102, 38114, 51153, 54910, 57171, 60180, 65892, 67260, 68204, 76228, 82365, 85255, 95285, 102306, 109820, 114342, 164730, 170510, 190570, 204612, 228684, 255765, 285855, 323969, 329460, 341020, 381140, 511530, 571710, 647938, 971907, 1023060, 1143420, 1295876, 1619845, 1943814, 3239690, 3887628, 4859535, 6479380, 9719070, 19438140]

約数ペア:

[(1, 19438140), (2, 9719070), (3, 6479380), (4, 4859535), (5, 3887628), (6, 3239690), (10, 1943814), (12, 1619845), (15, 1295876), (17, 1143420), (19, 1023060), (20, 971907), (30, 647938), (34, 571710), (38, 511530), (51, 381140), (57, 341020), (59, 329460), (60, 323969), (68, 285855), (76, 255765), (85, 228684), (95, 204612), (102, 190570), (114, 170510), (118, 164730), (170, 114342), (177, 109820), (190, 102306), (204, 95285), (228, 85255), (236, 82365), (255, 76228), (285, 68204), (289, 67260), (295, 65892), (323, 60180), (340, 57171), (354, 54910), (380, 51153), (510, 38114), (570, 34102), (578, 33630), (590, 32946), (646, 30090), (708, 27455), (867, 22420), (885, 21964), (969, 20060), (1003, 19380), (1020, 19057), (1121, 17340), (1140, 17051), (1156, 16815), (1180, 16473), (1292, 15045), (1445, 13452), (1615, 12036), (1734, 11210), (1770, 10982), (1938, 10030), (2006, 9690), (2242, 8670), (2890, 6726), (3009, 6460), (3230, 6018), (3363, 5780), (3468, 5605), (3540, 5491), (3876, 5015), (4012, 4845), (4335, 4484)]