214136840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 535680000

約数和(自身を除く): 321543160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 61, 62, 76, 95, 122, 124, 149, 152, 155, 190, 244, 248, 298, 305, 310, 380, 488, 589, 596, 610, 620, 745, 760, 1159, 1178, 1192, 1220, 1240, 1490, 1891, 2318, 2356, 2440, 2831, 2945, 2980, 3782, 4619, 4636, 4712, 5662, 5795, 5890, 5960, 7564, 9089, 9238, 9272, 9455, 11324, 11590, 11780, 14155, 15128, 18178, 18476, 18910, 22648, 23095, 23180, 23560, 28310, 35929, 36356, 36952, 37820, 45445, 46190, 46360, 56620, 71858, 72712, 75640, 87761, 90890, 92380, 113240, 143716, 172691, 175522, 179645, 181780, 184760, 281759, 287432, 345382, 351044, 359290, 363560, 438805, 563518, 690764, 702088, 718580, 863455, 877610, 1127036, 1381528, 1408795, 1437160, 1726910, 1755220, 2254072, 2817590, 3453820, 3510440, 5353421, 5635180, 6907640, 10706842, 11270360, 21413684, 26767105, 42827368, 53534210, 107068420, 214136840]

約数ペア:

[(1, 214136840), (2, 107068420), (4, 53534210), (5, 42827368), (8, 26767105), (10, 21413684), (19, 11270360), (20, 10706842), (31, 6907640), (38, 5635180), (40, 5353421), (61, 3510440), (62, 3453820), (76, 2817590), (95, 2254072), (122, 1755220), (124, 1726910), (149, 1437160), (152, 1408795), (155, 1381528), (190, 1127036), (244, 877610), (248, 863455), (298, 718580), (305, 702088), (310, 690764), (380, 563518), (488, 438805), (589, 363560), (596, 359290), (610, 351044), (620, 345382), (745, 287432), (760, 281759), (1159, 184760), (1178, 181780), (1192, 179645), (1220, 175522), (1240, 172691), (1490, 143716), (1891, 113240), (2318, 92380), (2356, 90890), (2440, 87761), (2831, 75640), (2945, 72712), (2980, 71858), (3782, 56620), (4619, 46360), (4636, 46190), (4712, 45445), (5662, 37820), (5795, 36952), (5890, 36356), (5960, 35929), (7564, 28310), (9089, 23560), (9238, 23180), (9272, 23095), (9455, 22648), (11324, 18910), (11590, 18476), (11780, 18178), (14155, 15128)]